Answers

Subtract 45/49 from 63/20

1^st number: 3 3/20, 2^nd number: 45/49

63/20 - 45/49 is 2187/980.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 49 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   63/20 = 63 × 49/20 × 49 = 3087/980
3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
   45/49 = 45 × 20/49 × 20 = 900/980
4. Subtract the two like fractions:
   3087/980 - 900/980 = 3087 - 900/980 = 2187/980
5. In mixed form: 2227/980

MathStep (Works offline)

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

Related: ⁶³/₂₀-⁹⁰/₄₉ ⁶³/₄₀-⁴⁵/₄₉ ⁶³/₂₀-⁴⁵/₉₈ ⁶³/₆₀-⁴⁵/₄₉

Subtract Fractions Calculator