Answers

Add 15/72 and 28/54

15/72 + 28/54 is 157/216.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 54 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 72 × 3 = 216,
   15/72 = 15 × 3/72 × 3 = 45/216
3. Likewise, for the 2nd fraction, since 54 × 4 = 216,
   28/54 = 28 × 4/54 × 4 = 112/216
4. Add the two like fractions:
   45/216 + 112/216 = 45 + 112/216 = 157/216
5. So, 15/72 + 28/54 = 157/216

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