Answers

Subtract 8/9 from 4/72

4/72 - 8/9 is -5/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 9 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   4/72 = 4 × 1/72 × 1 = 4/72
3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
   8/9 = 8 × 8/9 × 8 = 64/72
4. Subtract the two like fractions:
   4/72 - 64/72 = 4 - 64/72 = -60/72
5. After reducing the fraction, the answer is -5/6

MathStep (Works offline)

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

Related: ⁸/₇₂-⁸/₉ ⁴/₇₂-¹⁶/₉ ⁴/₇₂-⁸/₁₈ ¹²/₇₂-⁸/₉ ⁴/₇₂-²⁴/₉ ⁴/₇₂-⁸/₂₇ ²⁰/₇₂-⁸/₉ ⁴/₇₂-⁴⁰/₉ ⁴/₇₂-⁸/₄₅ ²⁸/₇₂-⁸/₉ ⁴/₇₂-⁵⁶/₉ ⁴/₇₂-⁸/₆₃

Subtract Fractions Calculator