Answers

Subtract 45/50 from 50/21

1^st number: 2 8/21, 2^nd number: 45/50

50/21 - 45/50 is 311/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 50 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 21 × 50 = 1050,
   50/21 = 50 × 50/21 × 50 = 2500/1050
3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
   45/50 = 45 × 21/50 × 21 = 945/1050
4. Subtract the two like fractions:
   2500/1050 - 945/1050 = 2500 - 945/1050 = 1555/1050
5. After reducing the fraction, the answer is 311/210
6. In mixed form: 1101/210

MathStep (Works offline)

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

Related: ⁵⁰/₂₁-⁹⁰/₅₀ ⁵⁰/₄₂-⁴⁵/₅₀ ⁵⁰/₆₃-⁴⁵/₅₀

Subtract Fractions Calculator