Answers

Subtract 70/81 from 48/18

1^st number: 2 12/18, 2^nd number: 70/81

48/18 - 70/81 is 146/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   48/18 = 48 × 9/18 × 9 = 432/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   70/81 = 70 × 2/81 × 2 = 140/162
4. Subtract the two like fractions:
   432/162 - 140/162 = 432 - 140/162 = 292/162
5. After reducing the fraction, the answer is 146/81
6. In mixed form: 165/81

MathStep (Works offline)

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

Related: ⁹⁶/₁₈-⁷⁰/₈₁ ⁴⁸/₃₆-⁷⁰/₈₁ ⁴⁸/₅₄-⁷⁰/₈₁ ⁴⁸/₉₀-⁷⁰/₈₁

Subtract Fractions Calculator