Answers

Subtract 20/30 from 49/40

1^st number: 1 9/40, 2^nd number: 20/30

49/40 - 20/30 is 67/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   49/40 = 49 × 3/40 × 3 = 147/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   20/30 = 20 × 4/30 × 4 = 80/120
4. Subtract the two like fractions:
   147/120 - 80/120 = 147 - 80/120 = 67/120

MathStep (Works offline)

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

Related: ⁹⁸/₄₀-²⁰/₃₀ ⁴⁹/₄₀-⁴⁰/₃₀ ⁴⁹/₈₀-²⁰/₃₀ ⁴⁹/₄₀-²⁰/₆₀ ⁴⁹/₄₀-⁶⁰/₃₀ ⁴⁹/₄₀-²⁰/₉₀

Subtract Fractions Calculator