Answers

Subtract 72/20 from 7/12

1^st number: 7/12, 2^nd number: 3 12/20

7/12 - 72/20 is -181/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 20 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 12 × 5 = 60,
   7/12 = 7 × 5/12 × 5 = 35/60
3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
   72/20 = 72 × 3/20 × 3 = 216/60
4. Subtract the two like fractions:
   35/60 - 216/60 = 35 - 216/60 = -181/60

MathStep (Works offline)

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

Related: ¹⁴/₁₂-⁷²/₂₀ ⁷/₂₄-⁷²/₂₀ ⁷/₁₂-⁷²/₄₀ ²¹/₁₂-⁷²/₂₀ ⁷/₃₆-⁷²/₂₀ ⁷/₁₂-⁷²/₆₀ ³⁵/₁₂-⁷²/₂₀ ⁷/₆₀-⁷²/₂₀ ⁴⁹/₁₂-⁷²/₂₀ ⁷/₈₄-⁷²/₂₀

Subtract Fractions Calculator