Answers

Subtract 48/54 from 18/20

18/20 - 48/54 is 1/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   18/20 = 18 × 27/20 × 27 = 486/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   48/54 = 48 × 10/54 × 10 = 480/540
4. Subtract the two like fractions:
   486/540 - 480/540 = 486 - 480/540 = 6/540
5. After reducing the fraction, the answer is 1/90

MathStep (Works offline)

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

Related: ³⁶/₂₀-⁴⁸/₅₄ ¹⁸/₂₀-⁹⁶/₅₄ ¹⁸/₄₀-⁴⁸/₅₄ ⁵⁴/₂₀-⁴⁸/₅₄ ¹⁸/₆₀-⁴⁸/₅₄ ⁹⁰/₂₀-⁴⁸/₅₄

Subtract Fractions Calculator