Answers

Subtract 75/30 from 70/35

1^st number: 2 0/35, 2^nd number: 2 15/30

70/35 - 75/30 is -1/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 35 × 6 = 210,
   70/35 = 70 × 6/35 × 6 = 420/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   75/30 = 75 × 7/30 × 7 = 525/210
4. Subtract the two like fractions:
   420/210 - 525/210 = 420 - 525/210 = -105/210
5. After reducing the fraction, the answer is -1/2

MathStep (Works offline)

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

Related: ⁷⁰/₃₅-⁷⁵/₆₀ ⁷⁰/₃₅-⁷⁵/₉₀

Subtract Fractions Calculator