Answers

Subtract 81/70 from 5/56

1^st number: 5/56, 2^nd number: 1 11/70

5/56 - 81/70 is -299/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   5/56 = 5 × 5/56 × 5 = 25/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   81/70 = 81 × 4/70 × 4 = 324/280
4. Subtract the two like fractions:
   25/280 - 324/280 = 25 - 324/280 = -299/280

MathStep (Works offline)

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

Related: ¹⁰/₅₆-⁸¹/₇₀ ¹⁵/₅₆-⁸¹/₇₀ ²⁵/₅₆-⁸¹/₇₀ ³⁵/₅₆-⁸¹/₇₀

Subtract Fractions Calculator