Answers

Subtract 20/63 from 56/45

1^st number: 1 11/45, 2^nd number: 20/63

56/45 - 20/63 is 292/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   56/45 = 56 × 7/45 × 7 = 392/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   20/63 = 20 × 5/63 × 5 = 100/315
4. Subtract the two like fractions:
   392/315 - 100/315 = 392 - 100/315 = 292/315

MathStep (Works offline)

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

Related: ⁵⁶/₄₅-⁴⁰/₆₃ ⁵⁶/₉₀-²⁰/₆₃ ⁵⁶/₄₅-⁶⁰/₆₃

Subtract Fractions Calculator