Answers

Subtract 63/12 from 81/36

1^st number: 2 9/36, 2^nd number: 5 3/12

81/36 - 63/12 is -3/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 12 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 36 × 1 = 36,
   81/36 = 81 × 1/36 × 1 = 81/36
3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
   63/12 = 63 × 3/12 × 3 = 189/36
4. Subtract the two like fractions:
   81/36 - 189/36 = 81 - 189/36 = -108/36
5. After reducing the fraction, the answer is -3/1

MathStep (Works offline)

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

Related: ⁸¹/₇₂-⁶³/₁₂ ⁸¹/₃₆-⁶³/₂₄ ⁸¹/₃₆-⁶³/₃₆ ⁸¹/₃₆-⁶³/₆₀ ⁸¹/₃₆-⁶³/₈₄

Subtract Fractions Calculator