Answers

Subtract 45/56 from 36/70

36/70 - 45/56 is -81/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   36/70 = 36 × 4/70 × 4 = 144/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   45/56 = 45 × 5/56 × 5 = 225/280
4. Subtract the two like fractions:
   144/280 - 225/280 = 144 - 225/280 = -81/280

MathStep (Works offline)

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

Related: ⁷²/₇₀-⁴⁵/₅₆ ³⁶/₇₀-⁹⁰/₅₆

Subtract Fractions Calculator