Answers

Subtract 10/81 from 50/30

1^st number: 1 20/30, 2^nd number: 10/81

50/30 - 10/81 is 125/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 30 × 27 = 810,
   50/30 = 50 × 27/30 × 27 = 1350/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   10/81 = 10 × 10/81 × 10 = 100/810
4. Subtract the two like fractions:
   1350/810 - 100/810 = 1350 - 100/810 = 1250/810
5. After reducing the fraction, the answer is 125/81
6. In mixed form: 144/81

MathStep (Works offline)

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

Related: ⁵⁰/₃₀-²⁰/₈₁ ⁵⁰/₆₀-¹⁰/₈₁ ⁵⁰/₃₀-³⁰/₈₁ ⁵⁰/₉₀-¹⁰/₈₁ ⁵⁰/₃₀-⁵⁰/₈₁ ⁵⁰/₃₀-⁷⁰/₈₁

Subtract Fractions Calculator