Answers

Add 14/42 and 84/72

1^st number: 14/42, 2^nd number: 1 12/72

14/42 + 84/72 is 3/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   14/42 = 14 × 12/42 × 12 = 168/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
4. Add the two like fractions:
   168/504 + 588/504 = 168 + 588/504 = 756/504
5. 756/504 simplified gives 3/2
6. So, 14/42 + 84/72 = 3/2
   In mixed form: 11/2

MathStep (Works offline)

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

Related: ²⁸/₄₂+⁸⁴/₇₂ ¹⁴/₈₄+⁸⁴/₇₂ ⁷⁰/₄₂+⁸⁴/₇₂ ⁹⁸/₄₂+⁸⁴/₇₂

Add Fractions Calculator