Answers

Add 35/42 and 84/72

1^st number: 35/42, 2^nd number: 1 12/72

35/42 + 84/72 is 2/1.

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,
   35/42 = 35 × 12/42 × 12 = 420/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
4. Add the two like fractions:
   420/504 + 588/504 = 420 + 588/504 = 1008/504
5. 1008/504 simplified gives 2/1
6. So, 35/42 + 84/72 = 2/1

MathStep (Works offline)

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

Related: ⁷⁰/₄₂+⁸⁴/₇₂ ³⁵/₈₄+⁸⁴/₇₂

Add Fractions Calculator