Answers

Subtract 70/81 from 60/18

1^st number: 3 6/18, 2^nd number: 70/81

60/18 - 70/81 is 200/81.

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,
   60/18 = 60 × 9/18 × 9 = 540/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   70/81 = 70 × 2/81 × 2 = 140/162
4. Subtract the two like fractions:
   540/162 - 140/162 = 540 - 140/162 = 400/162
5. After reducing the fraction, the answer is 200/81
6. In mixed form: 238/81

MathStep (Works offline)

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

Related: ⁶⁰/₃₆-⁷⁰/₈₁ ⁶⁰/₅₄-⁷⁰/₈₁ ⁶⁰/₉₀-⁷⁰/₈₁

Subtract Fractions Calculator