Answers

Subtract 81/40 from 70/2

1^st number: 35 0/2, 2^nd number: 2 1/40

70/2 - 81/40 is 1319/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 2 × 20 = 40,
   70/2 = 70 × 20/2 × 20 = 1400/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   81/40 = 81 × 1/40 × 1 = 81/40
4. Subtract the two like fractions:
   1400/40 - 81/40 = 1400 - 81/40 = 1319/40
5. In mixed form: 3239/40

MathStep (Works offline)

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

Related: ⁷⁰/₄-⁸¹/₄₀ ⁷⁰/₂-⁸¹/₈₀ ⁷⁰/₆-⁸¹/₄₀ ⁷⁰/₁₀-⁸¹/₄₀ ⁷⁰/₁₄-⁸¹/₄₀

Subtract Fractions Calculator