Answers

Add 28/54 and 15/84

28/54 + 15/84 is 527/756.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 84 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   28/54 = 28 × 14/54 × 14 = 392/756
3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
   15/84 = 15 × 9/84 × 9 = 135/756
4. Add the two like fractions:
   392/756 + 135/756 = 392 + 135/756 = 527/756
5. So, 28/54 + 15/84 = 527/756

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