Answers

Add 18/84 and 49/54

18/84 + 49/54 is 212/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   18/84 = 18 × 9/84 × 9 = 162/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   49/54 = 49 × 14/54 × 14 = 686/756
4. Add the two like fractions:
   162/756 + 686/756 = 162 + 686/756 = 848/756
5. 848/756 simplified gives 212/189
6. So, 18/84 + 49/54 = 212/189
   In mixed form: 123/189

MathStep (Works offline)

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

Related: ³⁶/₈₄+⁴⁹/₅₄ ¹⁸/₈₄+⁹⁸/₅₄ ⁵⁴/₈₄+⁴⁹/₅₄ ⁹⁰/₈₄+⁴⁹/₅₄

Add Fractions Calculator