Answers

Subtract 18/80 from 18/50

18/50 - 18/80 is 27/200.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 80 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 50 × 8 = 400,
   18/50 = 18 × 8/50 × 8 = 144/400
3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
   18/80 = 18 × 5/80 × 5 = 90/400
4. Subtract the two like fractions:
   144/400 - 90/400 = 144 - 90/400 = 54/400
5. After reducing the fraction, the answer is 27/200

MathStep (Works offline)

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

Related: ³⁶/₅₀-¹⁸/₈₀ ¹⁸/₅₀-³⁶/₈₀ ⁵⁴/₅₀-¹⁸/₈₀ ¹⁸/₅₀-⁵⁴/₈₀ ⁹⁰/₅₀-¹⁸/₈₀ ¹⁸/₅₀-⁹⁰/₈₀

Subtract Fractions Calculator