Answers

Subtract 42/18 from 8/36

1^st number: 8/36, 2^nd number: 2 6/18

8/36 - 42/18 is -19/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 18 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 36 × 1 = 36,
   8/36 = 8 × 1/36 × 1 = 8/36
3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
   42/18 = 42 × 2/18 × 2 = 84/36
4. Subtract the two like fractions:
   8/36 - 84/36 = 8 - 84/36 = -76/36
5. After reducing the fraction, the answer is -19/9

MathStep (Works offline)

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

Related: ¹⁶/₃₆-⁴²/₁₈ ⁸/₃₆-⁸⁴/₁₈ ⁸/₇₂-⁴²/₁₈ ⁸/₃₆-⁴²/₃₆ ²⁴/₃₆-⁴²/₁₈ ⁸/₃₆-⁴²/₅₄ ⁴⁰/₃₆-⁴²/₁₈ ⁸/₃₆-⁴²/₉₀ ⁵⁶/₃₆-⁴²/₁₈

Subtract Fractions Calculator