Answers

Subtract 35/36 from 21/35

21/35 - 35/36 is -67/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 36 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 35 × 36 = 1260,
   21/35 = 21 × 36/35 × 36 = 756/1260
3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
   35/36 = 35 × 35/36 × 35 = 1225/1260
4. Subtract the two like fractions:
   756/1260 - 1225/1260 = 756 - 1225/1260 = -469/1260
5. After reducing the fraction, the answer is -67/180

MathStep (Works offline)

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

Related: ⁴²/₃₅-³⁵/₃₆ ²¹/₃₅-⁷⁰/₃₆ ²¹/₇₀-³⁵/₃₆ ²¹/₃₅-³⁵/₇₂ ⁶³/₃₅-³⁵/₃₆

Subtract Fractions Calculator