Answers

Subtract 20/42 from 54/35

1^st number: 1 19/35, 2^nd number: 20/42

54/35 - 20/42 is 16/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 35 × 6 = 210,
   54/35 = 54 × 6/35 × 6 = 324/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   20/42 = 20 × 5/42 × 5 = 100/210
4. Subtract the two like fractions:
   324/210 - 100/210 = 324 - 100/210 = 224/210
5. After reducing the fraction, the answer is 16/15
6. In mixed form: 11/15

MathStep (Works offline)

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

Related: ⁵⁴/₃₅-⁴⁰/₄₂ ⁵⁴/₇₀-²⁰/₄₂ ⁵⁴/₃₅-²⁰/₈₄ ⁵⁴/₃₅-⁶⁰/₄₂

Subtract Fractions Calculator