Answers

Subtract 56/35 from 30/70

1^st number: 30/70, 2^nd number: 1 21/35

30/70 - 56/35 is -41/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 35 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 70 × 1 = 70,
   30/70 = 30 × 1/70 × 1 = 30/70
3. Likewise, for the 2nd fraction, since 35 × 2 = 70,
   56/35 = 56 × 2/35 × 2 = 112/70
4. Subtract the two like fractions:
   30/70 - 112/70 = 30 - 112/70 = -82/70
5. After reducing the fraction, the answer is -41/35

MathStep (Works offline)

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

Related: ⁶⁰/₇₀-⁵⁶/₃₅ ³⁰/₇₀-⁵⁶/₇₀ ⁹⁰/₇₀-⁵⁶/₃₅

Subtract Fractions Calculator