Answers

Subtract 63/20 from 54/48

1^st number: 1 6/48, 2^nd number: 3 3/20

54/48 - 63/20 is -81/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 20 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   54/48 = 54 × 5/48 × 5 = 270/240
3. Likewise, for the 2nd fraction, since 20 × 12 = 240,
   63/20 = 63 × 12/20 × 12 = 756/240
4. Subtract the two like fractions:
   270/240 - 756/240 = 270 - 756/240 = -486/240
5. After reducing the fraction, the answer is -81/40

MathStep (Works offline)

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

Related: ⁵⁴/₉₆-⁶³/₂₀ ⁵⁴/₄₈-⁶³/₄₀ ⁵⁴/₄₈-⁶³/₆₀

Subtract Fractions Calculator