Answers

Add 18/84 and 4/63

18/84 + 4/63 is 5/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   18/84 = 18 × 3/84 × 3 = 54/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   4/63 = 4 × 4/63 × 4 = 16/252
4. Add the two like fractions:
   54/252 + 16/252 = 54 + 16/252 = 70/252
5. 70/252 simplified gives 5/18
6. So, 18/84 + 4/63 = 5/18

MathStep (Works offline)

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

Related: ³⁶/₈₄+⁴/₆₃ ¹⁸/₈₄+⁸/₆₃ ⁵⁴/₈₄+⁴/₆₃ ¹⁸/₈₄+¹²/₆₃ ⁹⁰/₈₄+⁴/₆₃ ¹⁸/₈₄+²⁰/₆₃ ¹⁸/₈₄+²⁸/₆₃

Add Fractions Calculator