Answers

Subtract 30/6 from 70/63

1^st number: 1 7/63, 2^nd number: 5 0/6

70/63 - 30/6 is -35/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 6 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
3. Likewise, for the 2nd fraction, since 6 × 21 = 126,
   30/6 = 30 × 21/6 × 21 = 630/126
4. Subtract the two like fractions:
   140/126 - 630/126 = 140 - 630/126 = -490/126
5. After reducing the fraction, the answer is -35/9

MathStep (Works offline)

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

Related: ⁷⁰/₆₃-⁶⁰/₆ ⁷⁰/₆₃-³⁰/₁₂ ⁷⁰/₆₃-⁹⁰/₆ ⁷⁰/₆₃-³⁰/₁₈ ⁷⁰/₆₃-³⁰/₄₂

Subtract Fractions Calculator