Answers

Subtract 40/50 from 30/48

30/48 - 40/50 is -7/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 50 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 48 × 25 = 1200,
   30/48 = 30 × 25/48 × 25 = 750/1200
3. Likewise, for the 2nd fraction, since 50 × 24 = 1200,
   40/50 = 40 × 24/50 × 24 = 960/1200
4. Subtract the two like fractions:
   750/1200 - 960/1200 = 750 - 960/1200 = -210/1200
5. After reducing the fraction, the answer is -7/40

MathStep (Works offline)

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

Related: ⁶⁰/₄₈-⁴⁰/₅₀ ³⁰/₄₈-⁸⁰/₅₀ ³⁰/₉₆-⁴⁰/₅₀ ⁹⁰/₄₈-⁴⁰/₅₀

Subtract Fractions Calculator