Answers

Subtract 63/4 from 30/9

1^st number: 3 3/9, 2^nd number: 15 3/4

30/9 - 63/4 is -149/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 4 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 9 × 4 = 36,
   30/9 = 30 × 4/9 × 4 = 120/36
3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
   63/4 = 63 × 9/4 × 9 = 567/36
4. Subtract the two like fractions:
   120/36 - 567/36 = 120 - 567/36 = -447/36
5. After reducing the fraction, the answer is -149/12

MathStep (Works offline)

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

Related: ⁶⁰/₉-⁶³/₄ ³⁰/₁₈-⁶³/₄ ³⁰/₉-⁶³/₈ ⁹⁰/₉-⁶³/₄ ³⁰/₂₇-⁶³/₄ ³⁰/₉-⁶³/₁₂ ³⁰/₄₅-⁶³/₄ ³⁰/₉-⁶³/₂₀ ³⁰/₆₃-⁶³/₄ ³⁰/₉-⁶³/₂₈

Subtract Fractions Calculator