Answers

Subtract 70/56 from 90/5

1^st number: 18 0/5, 2^nd number: 1 14/56

90/5 - 70/56 is 67/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 5 × 56 = 280,
   90/5 = 90 × 56/5 × 56 = 5040/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   70/56 = 70 × 5/56 × 5 = 350/280
4. Subtract the two like fractions:
   5040/280 - 350/280 = 5040 - 350/280 = 4690/280
5. After reducing the fraction, the answer is 67/4
6. In mixed form: 163/4

MathStep (Works offline)

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

Related: ⁹⁰/₁₀-⁷⁰/₅₆ ⁹⁰/₁₅-⁷⁰/₅₆ ⁹⁰/₂₅-⁷⁰/₅₆ ⁹⁰/₃₅-⁷⁰/₅₆

Subtract Fractions Calculator