Answers

Subtract 16/27 from 18/45

18/45 - 16/27 is -26/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 27 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 45 × 3 = 135,
   18/45 = 18 × 3/45 × 3 = 54/135
3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
   16/27 = 16 × 5/27 × 5 = 80/135
4. Subtract the two like fractions:
   54/135 - 80/135 = 54 - 80/135 = -26/135

MathStep (Works offline)

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

Related: ³⁶/₄₅-¹⁶/₂₇ ¹⁸/₄₅-³²/₂₇ ¹⁸/₉₀-¹⁶/₂₇ ¹⁸/₄₅-¹⁶/₅₄ ⁵⁴/₄₅-¹⁶/₂₇ ¹⁸/₄₅-⁴⁸/₂₇ ¹⁸/₄₅-¹⁶/₈₁ ⁹⁰/₄₅-¹⁶/₂₇ ¹⁸/₄₅-⁸⁰/₂₇

Subtract Fractions Calculator