Answers

Add 15/54 and 7/72

15/54 + 7/72 is 3/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 72 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 54 × 4 = 216,
   15/54 = 15 × 4/54 × 4 = 60/216
3. Likewise, for the 2nd fraction, since 72 × 3 = 216,
   7/72 = 7 × 3/72 × 3 = 21/216
4. Add the two like fractions:
   60/216 + 21/216 = 60 + 21/216 = 81/216
5. 81/216 simplified gives 3/8
6. So, 15/54 + 7/72 = 3/8

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