Answers

Subtract 70/63 from 12/36

1^st number: 12/36, 2^nd number: 1 7/63

12/36 - 70/63 is -7/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   12/36 = 12 × 7/36 × 7 = 84/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   70/63 = 70 × 4/63 × 4 = 280/252
4. Subtract the two like fractions:
   84/252 - 280/252 = 84 - 280/252 = -196/252
5. After reducing the fraction, the answer is -7/9

MathStep (Works offline)

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

Related: ²⁴/₃₆-⁷⁰/₆₃ ¹²/₇₂-⁷⁰/₆₃ ⁶⁰/₃₆-⁷⁰/₆₃ ⁸⁴/₃₆-⁷⁰/₆₃

Subtract Fractions Calculator