Answers

Subtract 84/72 from 40/14

1^st number: 2 12/14, 2^nd number: 1 12/72

40/14 - 84/72 is 71/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 14 × 36 = 504,
   40/14 = 40 × 36/14 × 36 = 1440/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
4. Subtract the two like fractions:
   1440/504 - 588/504 = 1440 - 588/504 = 852/504
5. After reducing the fraction, the answer is 71/42
6. In mixed form: 129/42

MathStep (Works offline)

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

Related: ⁸⁰/₁₄-⁸⁴/₇₂ ⁴⁰/₂₈-⁸⁴/₇₂ ⁴⁰/₄₂-⁸⁴/₇₂ ⁴⁰/₇₀-⁸⁴/₇₂ ⁴⁰/₉₈-⁸⁴/₇₂

Subtract Fractions Calculator