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Multiplying fractions and then simplifying a big answer is slow. Cancel first: any top number and any bottom number that share a factor can both be divided by it. The numbers stay tiny and the answer comes out already in lowest terms. To divide, flip the second fraction and multiply.
✓ You passed this lesson’s test.
Cancel first — “divide a top and a bottom by the same number before multiplying”
Use it for: Recipes and sharing (half of 3/4 of a cake), fractions in Class 6–8, and olympiad speed rounds.
Check: 4 × 3 = 12 and 9 × 8 = 72; 12/72 = 1/6 ✓
Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass — and beat the clock: finish within 4 min.
🏅 Sign in with Google to earn the ✂️ Cancel Captain badge when you pass — and a certificate when you finish all 10 lessons of Part 4 · Speed decimals, fractions and percentages. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
Prefer a real teacher? TalentJR teachers take live online classes anywhere in India and visit homes in selected cities. Tell us what you need and our team will call you with timings and fees.