Answers

Subtract 63/16 from 42/36

1^st number: 1 6/36, 2^nd number: 3 15/16

42/36 - 63/16 is -133/48.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 16 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 36 × 4 = 144,
   42/36 = 42 × 4/36 × 4 = 168/144
3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
   63/16 = 63 × 9/16 × 9 = 567/144
4. Subtract the two like fractions:
   168/144 - 567/144 = 168 - 567/144 = -399/144
5. After reducing the fraction, the answer is -133/48

MathStep (Works offline)

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

Related: ⁸⁴/₃₆-⁶³/₁₆ ⁴²/₇₂-⁶³/₁₆ ⁴²/₃₆-⁶³/₃₂ ⁴²/₃₆-⁶³/₄₈ ⁴²/₃₆-⁶³/₈₀

Subtract Fractions Calculator