Answers

Subtract 45/4 from 84/20

1^st number: 4 4/20, 2^nd number: 11 1/4

84/20 - 45/4 is -141/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 4 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   84/20 = 84 × 1/20 × 1 = 84/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   45/4 = 45 × 5/4 × 5 = 225/20
4. Subtract the two like fractions:
   84/20 - 225/20 = 84 - 225/20 = -141/20

MathStep (Works offline)

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

Related: ⁸⁴/₂₀-⁹⁰/₄ ⁸⁴/₄₀-⁴⁵/₄ ⁸⁴/₂₀-⁴⁵/₈ ⁸⁴/₆₀-⁴⁵/₄ ⁸⁴/₂₀-⁴⁵/₁₂ ⁸⁴/₂₀-⁴⁵/₂₀ ⁸⁴/₂₀-⁴⁵/₂₈

Subtract Fractions Calculator