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Subtracting works the same way as adding: with the same bottom number, subtract the top numbers. For 1 − 3/10, write 1 as 10/10 first.
✓ You passed this lesson’s test.
1 whole = b/b — “write 1 as a fraction with the same bottom, then subtract the tops”
Use it for: Finding what is left: cake left over, the rest of a journey, the part of a tank still empty (Class 4–6).
🧮 Check your own sums with the free Fraction calculator — it shows the working.
Check: 7/10 + 3/10 = 10/10 = 1 ✓
▶ Watch it animatedWork 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.
🏅 Sign in with Google to earn the ➖ Like-Fraction Subtractor badge when you pass — and a certificate when you finish all 6 lessons of Part 3 · Adding and subtracting fractions. 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.
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