Answers

Subtract 2/20 from 54/84

54/84 - 2/20 is 19/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   54/84 = 54 × 5/84 × 5 = 270/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   2/20 = 2 × 21/20 × 21 = 42/420
4. Subtract the two like fractions:
   270/420 - 42/420 = 270 - 42/420 = 228/420
5. After reducing the fraction, the answer is 19/35

MathStep (Works offline)

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

Related: ⁵⁴/₈₄-⁴/₂₀ ⁵⁴/₈₄-²/₄₀ ⁵⁴/₈₄-⁶/₂₀ ⁵⁴/₈₄-²/₆₀ ⁵⁴/₈₄-¹⁰/₂₀ ⁵⁴/₈₄-¹⁴/₂₀

Subtract Fractions Calculator