Answers

Subtract 90/15 from 27/4

1^st number: 6 3/4, 2^nd number: 6 0/15

27/4 - 90/15 is 3/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 15 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 4 × 15 = 60,
   27/4 = 27 × 15/4 × 15 = 405/60
3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
   90/15 = 90 × 4/15 × 4 = 360/60
4. Subtract the two like fractions:
   405/60 - 360/60 = 405 - 360/60 = 45/60
5. After reducing the fraction, the answer is 3/4

MathStep (Works offline)

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

Related: ⁵⁴/₄-⁹⁰/₁₅ ²⁷/₈-⁹⁰/₁₅ ²⁷/₄-⁹⁰/₃₀ ⁸¹/₄-⁹⁰/₁₅ ²⁷/₁₂-⁹⁰/₁₅ ²⁷/₄-⁹⁰/₄₅ ²⁷/₂₀-⁹⁰/₁₅ ²⁷/₄-⁹⁰/₇₅ ²⁷/₂₈-⁹⁰/₁₅

Subtract Fractions Calculator