Answers

Subtract 6/20 from 90/16

1^st number: 5 10/16, 2^nd number: 6/20

90/16 - 6/20 is 213/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   90/16 = 90 × 5/16 × 5 = 450/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   6/20 = 6 × 4/20 × 4 = 24/80
4. Subtract the two like fractions:
   450/80 - 24/80 = 450 - 24/80 = 426/80
5. After reducing the fraction, the answer is 213/40
6. In mixed form: 513/40

MathStep (Works offline)

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

Related: ⁹⁰/₁₆-¹²/₂₀ ⁹⁰/₃₂-⁶/₂₀ ⁹⁰/₁₆-⁶/₄₀ ⁹⁰/₁₆-¹⁸/₂₀ ⁹⁰/₄₈-⁶/₂₀ ⁹⁰/₁₆-⁶/₆₀ ⁹⁰/₁₆-³⁰/₂₀ ⁹⁰/₈₀-⁶/₂₀ ⁹⁰/₁₆-⁴²/₂₀

Subtract Fractions Calculator