Answers

Subtract 84/56 from 1/72

1^st number: 1/72, 2^nd number: 1 28/56

1/72 - 84/56 is -107/72.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   1/72 = 1 × 7/72 × 7 = 7/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   84/56 = 84 × 9/56 × 9 = 756/504
4. Subtract the two like fractions:
   7/504 - 756/504 = 7 - 756/504 = -749/504
5. After reducing the fraction, the answer is -107/72

MathStep (Works offline)

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

Related: ²/₇₂-⁸⁴/₅₆ ³/₇₂-⁸⁴/₅₆ ⁵/₇₂-⁸⁴/₅₆ ⁷/₇₂-⁸⁴/₅₆

Subtract Fractions Calculator