Answers

Subtract 80/20 from 70/7

1^st number: 10 0/7, 2^nd number: 4 0/20

70/7 - 80/20 is 6/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 7 × 20 = 140,
   70/7 = 70 × 20/7 × 20 = 1400/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   80/20 = 80 × 7/20 × 7 = 560/140
4. Subtract the two like fractions:
   1400/140 - 560/140 = 1400 - 560/140 = 840/140
5. After reducing the fraction, the answer is 6/1

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁰/₁₄-⁸⁰/₂₀ ⁷⁰/₇-⁸⁰/₄₀ ⁷⁰/₂₁-⁸⁰/₂₀ ⁷⁰/₇-⁸⁰/₆₀ ⁷⁰/₃₅-⁸⁰/₂₀ ⁷⁰/₄₉-⁸⁰/₂₀

Subtract Fractions Calculator