Answers

Subtract 70/9 from 50/8

1^st number: 6 2/8, 2^nd number: 7 7/9

50/8 - 70/9 is -55/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 9 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 8 × 9 = 72,
   50/8 = 50 × 9/8 × 9 = 450/72
3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
   70/9 = 70 × 8/9 × 8 = 560/72
4. Subtract the two like fractions:
   450/72 - 560/72 = 450 - 560/72 = -110/72
5. After reducing the fraction, the answer is -55/36

MathStep (Works offline)

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

Related: ⁵⁰/₁₆-⁷⁰/₉ ⁵⁰/₈-⁷⁰/₁₈ ⁵⁰/₂₄-⁷⁰/₉ ⁵⁰/₈-⁷⁰/₂₇ ⁵⁰/₄₀-⁷⁰/₉ ⁵⁰/₈-⁷⁰/₄₅ ⁵⁰/₅₆-⁷⁰/₉ ⁵⁰/₈-⁷⁰/₆₃

Subtract Fractions Calculator