Answers

Subtract 16/54 from 20/40

20/40 - 16/54 is 11/54.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   20/40 = 20 × 27/40 × 27 = 540/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   16/54 = 16 × 20/54 × 20 = 320/1080
4. Subtract the two like fractions:
   540/1080 - 320/1080 = 540 - 320/1080 = 220/1080
5. After reducing the fraction, the answer is 11/54

MathStep (Works offline)

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

Related: ²⁰/₄₀-³²/₅₄ ²⁰/₈₀-¹⁶/₅₄ ⁶⁰/₄₀-¹⁶/₅₄ ²⁰/₄₀-⁴⁸/₅₄ ²⁰/₄₀-⁸⁰/₅₄

Subtract Fractions Calculator