Answers

Subtract 42/81 from 42/6

1^st number: 7 0/6, 2^nd number: 42/81

42/6 - 42/81 is 175/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 6 × 27 = 162,
   42/6 = 42 × 27/6 × 27 = 1134/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   42/81 = 42 × 2/81 × 2 = 84/162
4. Subtract the two like fractions:
   1134/162 - 84/162 = 1134 - 84/162 = 1050/162
5. After reducing the fraction, the answer is 175/27
6. In mixed form: 613/27

MathStep (Works offline)

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

Related: ⁸⁴/₆-⁴²/₈₁ ⁴²/₆-⁸⁴/₈₁ ⁴²/₁₂-⁴²/₈₁ ⁴²/₁₈-⁴²/₈₁ ⁴²/₃₀-⁴²/₈₁

Subtract Fractions Calculator