Answers

Subtract 8/42 from 20/25

20/25 - 8/42 is 64/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 42 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 25 × 42 = 1050,
   20/25 = 20 × 42/25 × 42 = 840/1050
3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
   8/42 = 8 × 25/42 × 25 = 200/1050
4. Subtract the two like fractions:
   840/1050 - 200/1050 = 840 - 200/1050 = 640/1050
5. After reducing the fraction, the answer is 64/105

MathStep (Works offline)

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

Related: ⁴⁰/₂₅-⁸/₄₂ ²⁰/₂₅-¹⁶/₄₂ ²⁰/₅₀-⁸/₄₂ ²⁰/₂₅-⁸/₈₄ ⁶⁰/₂₅-⁸/₄₂ ²⁰/₂₅-²⁴/₄₂ ²⁰/₇₅-⁸/₄₂ ²⁰/₂₅-⁴⁰/₄₂ ²⁰/₂₅-⁵⁶/₄₂

Subtract Fractions Calculator