Answers

Subtract 42/20 from 75/35

1^st number: 2 5/35, 2^nd number: 2 2/20

75/35 - 42/20 is 3/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 35 × 4 = 140,
   75/35 = 75 × 4/35 × 4 = 300/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   42/20 = 42 × 7/20 × 7 = 294/140
4. Subtract the two like fractions:
   300/140 - 294/140 = 300 - 294/140 = 6/140
5. After reducing the fraction, the answer is 3/70

MathStep (Works offline)

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

Related: ⁷⁵/₃₅-⁸⁴/₂₀ ⁷⁵/₇₀-⁴²/₂₀ ⁷⁵/₃₅-⁴²/₄₀ ⁷⁵/₃₅-⁴²/₆₀

Subtract Fractions Calculator