Answers

Add 8/84 and 18/72

8/84 + 18/72 is 29/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   8/84 = 8 × 6/84 × 6 = 48/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   18/72 = 18 × 7/72 × 7 = 126/504
4. Add the two like fractions:
   48/504 + 126/504 = 48 + 126/504 = 174/504
5. 174/504 simplified gives 29/84
6. So, 8/84 + 18/72 = 29/84

MathStep (Works offline)

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

Related: ¹⁶/₈₄+¹⁸/₇₂ ⁸/₈₄+³⁶/₇₂ ²⁴/₈₄+¹⁸/₇₂ ⁸/₈₄+⁵⁴/₇₂ ⁴⁰/₈₄+¹⁸/₇₂ ⁸/₈₄+⁹⁰/₇₂ ⁵⁶/₈₄+¹⁸/₇₂

Add Fractions Calculator