Quick Answer: Beginner multiplying-fraction examples include 1/2 x 1/3 = 1/6, 3/4 x 2/5 = 3/10, 2/3 x 9 = 6, and 2 1/2 x 1 1/5 = 3. In each case you multiply numerators together, denominators together, and simplify, converting mixed numbers to improper fractions first. These NCERT-style examples cover every common case Indian students meet.
Key takeaways:
- Worked examples cover proper, improper, mixed and whole-number cases.
- The method is always multiply across, then simplify.
- Mixed numbers must be converted before multiplying.
- Cross-cancelling keeps larger examples simple.
- Real Indian contexts like marks, money and recipes make examples stick.
The fastest way to master multiplying fractions is to work through varied examples. This reference guide collects beginner-friendly problems in the NCERT Class 7 style, from simple proper fractions to mixed numbers and word problems, each solved step by step with Indian contexts so you can use them as templates for your own practice.
Key takeaway: Work through each example with a pen before reading the solution. Active practice, not passive reading, is what makes fraction multiplication automatic.
Example 1: Two Simple Proper Fractions
Multiply 1/2 x 1/3. Multiply the numerators: 1 x 1 = 1. Multiply the denominators: 2 x 3 = 6. The answer is 1/6, already in lowest terms. In words, one-third of one-half is one-sixth, which you can picture as splitting half a chapati into three equal pieces and taking one.
Example 2: A Result That Simplifies
Multiply 3/4 x 2/5. Straight across gives (3 x 2)/(4 x 5) = 6/20. Simplify by dividing both by 2 to get 3/10. This shows the essential final step: an answer like 6/20 is correct but not complete until reduced to 3/10.
Example 3: Fraction Times a Whole Number
Find 2/3 of 9. Write 9 as 9/1: 2/3 x 9/1 = 18/3 = 6. So two-thirds of 9 is 6. A classroom version: if 2/3 of a group of 9 students passed a quiz, then 6 students passed.
Example 4: A Word Problem With Money
A book costs Rs 500, and a store offers 1/5 off. How much is the discount? Calculate 1/5 of 500 = 1/5 x 500/1 = 500/5 = Rs 100. So the discount is Rs 100 and you pay Rs 400. Recognising that of means multiply is the key to solving such everyday problems.
Example 5: Two Mixed Numbers
Multiply 2 1/2 x 1 1/5. Convert both to improper fractions: 2 1/2 = 5/2 and 1 1/5 = 6/5. Then multiply: (5 x 6)/(2 x 5) = 30/10 = 3. The answer is a whole number, 3. This example reinforces the rule that mixed numbers must be converted before multiplying.
Example 6: Using Cross-Cancellation
Multiply 4/9 x 3/8. Before multiplying, cancel: 4 and 8 share a factor of 4, and 3 and 9 share a factor of 3. This turns the problem into 1/3 x 1/2 = 1/6. Cross-cancelling avoids the larger fraction 12/72 and reaches 1/6 more cleanly.
| Example | Working | Answer |
|---|---|---|
| 1/2 x 1/3 | 1/6 | 1/6 |
| 3/4 x 2/5 | 6/20 | 3/10 |
| 2/3 x 9 | 18/3 | 6 |
| 1/5 x 500 | 500/5 | 100 |
| 2 1/2 x 1 1/5 | 30/10 | 3 |
| 4/9 x 3/8 | cancel to 1/3 x 1/2 | 1/6 |
Example 7: Three Fractions Together
Multiply 1/2 x 2/3 x 3/4. Multiply all numerators: 1 x 2 x 3 = 6. Multiply all denominators: 2 x 3 x 4 = 24. That gives 6/24, which simplifies to 1/4. Cross-cancelling first (the 2s and 3s) would give 1/4 directly, showing how the method scales to more than two fractions.
Benefits of Practising With Examples
Varied examples build fluency and confidence. They train you to recognise the different forms a problem can take, proper, improper, mixed and word problems, and to apply the same reliable method to each. This repetition is exactly what CBSE exams reward, and it also prepares you for percentages, ratios and probability, which lean heavily on fraction multiplication.
Challenges and Limitations
Examples show the method, but they cannot replace your own practice under time pressure. The trickiest cases remain mixed numbers, which must be converted, and word problems, which require you to interpret the situation correctly before calculating. Work slowly at first, then speed up as the steps become second nature.
Common Mistakes to Avoid
- Leaving 6/20 instead of 3/10: Always simplify to lowest terms.
- Multiplying mixed numbers as they are: Convert to improper fractions first.
- Treating of as division: The word of means multiply.
- Cancelling incorrectly: Cross-cancel only between a numerator and a denominator.
- Forgetting a whole number is over 1: Write 9 as 9/1 before multiplying.
- Rushing word problems: Read carefully to identify the fraction and the quantity.
Best Practices and Expert Recommendations
- Solve before checking: Attempt each example yourself, then verify the answer.
- Convert and cancel: Turn mixed numbers into improper fractions and cancel early.
- Simplify every time: Make reducing to lowest terms an automatic habit.
- Use real contexts: Practise with marks, money and recipes to stay engaged.
- Mix the question types: Rotate proper, mixed and word problems for balanced practice.
- Confirm with a calculator: Verify tricky answers with a multiplying fractions calculator.
Example 8: A Probability Problem
Multiplying fractions is the heart of probability. If the chance of a cricket team winning a match is 3/5 and, independently, the chance of rain on match day is 1/4, then the probability of both the team winning and it raining is 3/5 x 1/4 = 3/20. Notice again how multiplying two proper fractions gives a smaller fraction, which makes sense because both events happening together is less likely than either one alone.
Example 9: Area of a Rectangle
Fractional measurements appear in geometry and real construction. A rectangular garden bed measuring 2/3 metre by 3/4 metre has an area of 2/3 x 3/4 = 6/12 = 1/2 square metre. Whenever lengths are fractions, the area is found by multiplying them, so this skill directly supports measurement questions in exams and practical tasks like tiling or gardening at home.
A Practice Set to Try
Test yourself with these mixed problems, then simplify each answer fully:
- 5/8 x 4/15
- 2 1/2 x 2 2/5
- 7/9 of 45
- 1/2 x 3/5 x 10/9
- 3/4 of a Rs 640 bill
How to Use These Examples
Do not just read the solutions; cover them and attempt each problem yourself first. Convert mixed numbers to improper fractions, cross-cancel where possible, multiply across, and reduce to lowest terms. Then reveal the answer or check it with a multiplying fractions calculator. Practising a variety of forms, proper fractions, mixed numbers, whole numbers, money and geometry, is the surest way to make the method automatic and exam-ready.
Example 10: Scaling a Recipe
Cooking is one of the most common real-life uses of fraction multiplication in Indian homes. Suppose a halwa recipe serves four people and needs 2/3 cup of ghee, but you are cooking for six, which is 1 1/2 times the recipe. The ghee required is 3/2 x 2/3 = 6/6 = 1 cup. Scaling recipes up for guests during festivals, or down for a small family, is fraction multiplication in its most practical form, and getting it right keeps the taste and texture just as intended.
Reviewing Your Mistakes
When you check your answers, do not simply mark them right or wrong; study the ones you missed. The most common errors are forgetting to convert a mixed number, leaving the answer un-simplified, or misreading a word problem. Keep a small note of the mistakes you make most often and glance at it before your next practice session. This habit of learning from errors improves your accuracy far faster than repeating problems you already find easy.
Turning Practice Into Mastery
True mastery comes from variety and consistency. Mix proper fractions, improper fractions, mixed numbers, whole numbers and word problems so that no single type catches you off guard in an exam. Practise a little every day rather than a lot once a week, and verify with a calculator until you rarely need it. With this steady approach, multiplying fractions becomes a quick, reliable skill you can apply confidently in both the classroom and everyday life.
Conclusion
These worked examples span every common case a beginner will face: proper fractions, results that simplify, whole numbers, mixed numbers, cross-cancellation and word problems. The method never changes, multiply across and simplify, converting mixed numbers first. Practise these NCERT-style problems actively, apply the same steps to your own questions, and verify with a calculator until multiplying fractions becomes quick, accurate and genuinely easy.
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Frequently Asked Questions
What is a simple example of multiplying fractions?
A classic example is 1/2 x 1/3 = 1/6. You multiply the numerators (1 x 1 = 1) and the denominators (2 x 3 = 6), giving one-sixth, which is already in lowest terms.
How do I multiply a fraction by a whole number?
Write the whole number over 1 and multiply as usual. For instance, 2/3 x 9 becomes 2/3 x 9/1 = 18/3 = 6.
How do I multiply two mixed numbers?
Convert each to an improper fraction first, then multiply across and simplify. For example, 2 1/2 x 1 1/5 = 5/2 x 6/5 = 30/10 = 3.
What is cross-cancellation in these examples?
It is simplifying common factors between a numerator and a denominator before multiplying. In 4/9 x 3/8 you cancel to 1/3 x 1/2 = 1/6, avoiding larger numbers.
How can I get better at word problems?
Practise spotting the word of, which signals multiplication, then identify the fraction and the quantity. With money, marks and recipe examples, this quickly becomes intuitive.