Answers

Subtract 20/16 from 7/20

1^st number: 7/20, 2^nd number: 1 4/16

7/20 - 20/16 is -9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 16 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   7/20 = 7 × 4/20 × 4 = 28/80
3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
   20/16 = 20 × 5/16 × 5 = 100/80
4. Subtract the two like fractions:
   28/80 - 100/80 = 28 - 100/80 = -72/80
5. After reducing the fraction, the answer is -9/10

MathStep (Works offline)

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

Related: ¹⁴/₂₀-²⁰/₁₆ ⁷/₂₀-⁴⁰/₁₆ ⁷/₄₀-²⁰/₁₆ ⁷/₂₀-²⁰/₃₂ ²¹/₂₀-²⁰/₁₆ ⁷/₂₀-⁶⁰/₁₆ ⁷/₆₀-²⁰/₁₆ ⁷/₂₀-²⁰/₄₈ ³⁵/₂₀-²⁰/₁₆ ⁷/₂₀-²⁰/₈₀ ⁴⁹/₂₀-²⁰/₁₆

Subtract Fractions Calculator