Answers

Subtract 90/96 from 21/14

1^st number: 1 7/14, 2^nd number: 90/96

21/14 - 90/96 is 9/16.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 96 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 14 × 48 = 672,
   21/14 = 21 × 48/14 × 48 = 1008/672
3. Likewise, for the 2nd fraction, since 96 × 7 = 672,
   90/96 = 90 × 7/96 × 7 = 630/672
4. Subtract the two like fractions:
   1008/672 - 630/672 = 1008 - 630/672 = 378/672
5. After reducing the fraction, the answer is 9/16

MathStep (Works offline)

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

Related: ⁴²/₁₄-⁹⁰/₉₆ ²¹/₂₈-⁹⁰/₉₆ ⁶³/₁₄-⁹⁰/₉₆ ²¹/₄₂-⁹⁰/₉₆ ²¹/₇₀-⁹⁰/₉₆ ²¹/₉₈-⁹⁰/₉₆

Subtract Fractions Calculator