Answers

Subtract 70/6 from 42/80

1^st number: 42/80, 2^nd number: 11 4/6

42/80 - 70/6 is -1337/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 6 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 80 × 3 = 240,
   42/80 = 42 × 3/80 × 3 = 126/240
3. Likewise, for the 2nd fraction, since 6 × 40 = 240,
   70/6 = 70 × 40/6 × 40 = 2800/240
4. Subtract the two like fractions:
   126/240 - 2800/240 = 126 - 2800/240 = -2674/240
5. After reducing the fraction, the answer is -1337/120

MathStep (Works offline)

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

Related: ⁸⁴/₈₀-⁷⁰/₆ ⁴²/₈₀-⁷⁰/₁₂ ⁴²/₈₀-⁷⁰/₁₈ ⁴²/₈₀-⁷⁰/₃₀ ⁴²/₈₀-⁷⁰/₄₂

Subtract Fractions Calculator