Answers

Subtract 35/81 from 42/50

42/50 - 35/81 is 826/2025.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 81 is 4050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4050
2. For the 1st fraction, since 50 × 81 = 4050,
   42/50 = 42 × 81/50 × 81 = 3402/4050
3. Likewise, for the 2nd fraction, since 81 × 50 = 4050,
   35/81 = 35 × 50/81 × 50 = 1750/4050
4. Subtract the two like fractions:
   3402/4050 - 1750/4050 = 3402 - 1750/4050 = 1652/4050
5. After reducing the fraction, the answer is 826/2025

MathStep (Works offline)

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

Related: ⁸⁴/₅₀-³⁵/₈₁ ⁴²/₅₀-⁷⁰/₈₁

Subtract Fractions Calculator