Answers

Subtract 42/12 from 35/70

1^st number: 35/70, 2^nd number: 3 6/12

35/70 - 42/12 is -3/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 12 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   35/70 = 35 × 6/70 × 6 = 210/420
3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
   42/12 = 42 × 35/12 × 35 = 1470/420
4. Subtract the two like fractions:
   210/420 - 1470/420 = 210 - 1470/420 = -1260/420
5. After reducing the fraction, the answer is -3/1

MathStep (Works offline)

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

Related: ³⁵/₇₀-⁸⁴/₁₂ ³⁵/₇₀-⁴²/₂₄ ³⁵/₇₀-⁴²/₃₆ ³⁵/₇₀-⁴²/₆₀ ³⁵/₇₀-⁴²/₈₄

Subtract Fractions Calculator