Answers

Subtract 56/40 from 56/64

1^st number: 56/64, 2^nd number: 1 16/40

56/64 - 56/40 is -21/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 40 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   56/64 = 56 × 5/64 × 5 = 280/320
3. Likewise, for the 2nd fraction, since 40 × 8 = 320,
   56/40 = 56 × 8/40 × 8 = 448/320
4. Subtract the two like fractions:
   280/320 - 448/320 = 280 - 448/320 = -168/320
5. After reducing the fraction, the answer is -21/40

MathStep (Works offline)

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

Related: ⁵⁶/₆₄-⁵⁶/₈₀

Subtract Fractions Calculator