Answers

Subtract 35/36 from 27/80

27/80 - 35/36 is -457/720.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 36 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   27/80 = 27 × 9/80 × 9 = 243/720
3. Likewise, for the 2nd fraction, since 36 × 20 = 720,
   35/36 = 35 × 20/36 × 20 = 700/720
4. Subtract the two like fractions:
   243/720 - 700/720 = 243 - 700/720 = -457/720

MathStep (Works offline)

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

Related: ⁵⁴/₈₀-³⁵/₃₆ ²⁷/₈₀-⁷⁰/₃₆ ²⁷/₈₀-³⁵/₇₂ ⁸¹/₈₀-³⁵/₃₆

Subtract Fractions Calculator