Answers

Subtract 12/20 from 60/42

1^st number: 1 18/42, 2^nd number: 12/20

60/42 - 12/20 is 29/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   60/42 = 60 × 10/42 × 10 = 600/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   12/20 = 12 × 21/20 × 21 = 252/420
4. Subtract the two like fractions:
   600/420 - 252/420 = 600 - 252/420 = 348/420
5. After reducing the fraction, the answer is 29/35

MathStep (Works offline)

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

Related: ⁶⁰/₄₂-²⁴/₂₀ ⁶⁰/₈₄-¹²/₂₀ ⁶⁰/₄₂-¹²/₄₀ ⁶⁰/₄₂-³⁶/₂₀ ⁶⁰/₄₂-¹²/₆₀ ⁶⁰/₄₂-⁶⁰/₂₀ ⁶⁰/₄₂-⁸⁴/₂₀

Subtract Fractions Calculator