Answers

Subtract 8/25 from 70/21

1^st number: 3 7/21, 2^nd number: 8/25

70/21 - 8/25 is 226/75.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 25 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   70/21 = 70 × 25/21 × 25 = 1750/525
3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
   8/25 = 8 × 21/25 × 21 = 168/525
4. Subtract the two like fractions:
   1750/525 - 168/525 = 1750 - 168/525 = 1582/525
5. After reducing the fraction, the answer is 226/75
6. In mixed form: 31/75

MathStep (Works offline)

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

Related: ⁷⁰/₂₁-¹⁶/₂₅ ⁷⁰/₄₂-⁸/₂₅ ⁷⁰/₂₁-⁸/₅₀ ⁷⁰/₂₁-²⁴/₂₅ ⁷⁰/₆₃-⁸/₂₅ ⁷⁰/₂₁-⁸/₇₅ ⁷⁰/₂₁-⁴⁰/₂₅ ⁷⁰/₂₁-⁵⁶/₂₅

Subtract Fractions Calculator