Answers

Subtract 75/18 from 50/72

1^st number: 50/72, 2^nd number: 4 3/18

50/72 - 75/18 is -125/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 18 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   50/72 = 50 × 1/72 × 1 = 50/72
3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
   75/18 = 75 × 4/18 × 4 = 300/72
4. Subtract the two like fractions:
   50/72 - 300/72 = 50 - 300/72 = -250/72
5. After reducing the fraction, the answer is -125/36

MathStep (Works offline)

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

Related: ⁵⁰/₇₂-⁷⁵/₃₆ ⁵⁰/₇₂-⁷⁵/₅₄ ⁵⁰/₇₂-⁷⁵/₉₀

Subtract Fractions Calculator