Answers

Subtract 9/16 from 18/84

18/84 - 9/16 is -39/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 84 × 4 = 336,
   18/84 = 18 × 4/84 × 4 = 72/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   9/16 = 9 × 21/16 × 21 = 189/336
4. Subtract the two like fractions:
   72/336 - 189/336 = 72 - 189/336 = -117/336
5. After reducing the fraction, the answer is -39/112

MathStep (Works offline)

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

Related: ³⁶/₈₄-⁹/₁₆ ¹⁸/₈₄-¹⁸/₁₆ ¹⁸/₈₄-⁹/₃₂ ⁵⁴/₈₄-⁹/₁₆ ¹⁸/₈₄-²⁷/₁₆ ¹⁸/₈₄-⁹/₄₈ ⁹⁰/₈₄-⁹/₁₆ ¹⁸/₈₄-⁴⁵/₁₆ ¹⁸/₈₄-⁹/₈₀ ¹⁸/₈₄-⁶³/₁₆

Subtract Fractions Calculator