Answers

Subtract 70/3 from 70/90

1^st number: 70/90, 2^nd number: 23 1/3

70/90 - 70/3 is -203/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 3 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   70/90 = 70 × 1/90 × 1 = 70/90
3. Likewise, for the 2nd fraction, since 3 × 30 = 90,
   70/3 = 70 × 30/3 × 30 = 2100/90
4. Subtract the two like fractions:
   70/90 - 2100/90 = 70 - 2100/90 = -2030/90
5. After reducing the fraction, the answer is -203/9

MathStep (Works offline)

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

Related: ⁷⁰/₉₀-⁷⁰/₆ ⁷⁰/₉₀-⁷⁰/₉ ⁷⁰/₉₀-⁷⁰/₁₅ ⁷⁰/₉₀-⁷⁰/₂₁

Subtract Fractions Calculator