Answers

Subtract 42/16 from 50/70

1^st number: 50/70, 2^nd number: 2 10/16

50/70 - 42/16 is -107/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 16 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   50/70 = 50 × 8/70 × 8 = 400/560
3. Likewise, for the 2nd fraction, since 16 × 35 = 560,
   42/16 = 42 × 35/16 × 35 = 1470/560
4. Subtract the two like fractions:
   400/560 - 1470/560 = 400 - 1470/560 = -1070/560
5. After reducing the fraction, the answer is -107/56

MathStep (Works offline)

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

Related: ⁵⁰/₇₀-⁸⁴/₁₆ ⁵⁰/₇₀-⁴²/₃₂ ⁵⁰/₇₀-⁴²/₄₈ ⁵⁰/₇₀-⁴²/₈₀

Subtract Fractions Calculator