Answers

Subtract 70/90 from 63/5

1^st number: 12 3/5, 2^nd number: 70/90

63/5 - 70/90 is 532/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 5 × 18 = 90,
   63/5 = 63 × 18/5 × 18 = 1134/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   70/90 = 70 × 1/90 × 1 = 70/90
4. Subtract the two like fractions:
   1134/90 - 70/90 = 1134 - 70/90 = 1064/90
5. After reducing the fraction, the answer is 532/45
6. In mixed form: 1137/45

MathStep (Works offline)

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

Related: ⁶³/₁₀-⁷⁰/₉₀ ⁶³/₁₅-⁷⁰/₉₀ ⁶³/₂₅-⁷⁰/₉₀ ⁶³/₃₅-⁷⁰/₉₀

Subtract Fractions Calculator