Answers

Add 63/84 and 40/54

63/84 + 40/54 is 161/108.

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,
   63/84 = 63 × 9/84 × 9 = 567/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   40/54 = 40 × 14/54 × 14 = 560/756
4. Add the two like fractions:
   567/756 + 560/756 = 567 + 560/756 = 1127/756
5. 1127/756 simplified gives 161/108
6. So, 63/84 + 40/54 = 161/108
   In mixed form: 153/108

MathStep (Works offline)

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

Related: ⁶³/₈₄+⁸⁰/₅₄

Add Fractions Calculator