Answers

Add 15/72 and 56/54

1^st number: 15/72, 2^nd number: 1 2/54

15/72 + 56/54 is 269/216.

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,
   56/54 = 56 × 4/54 × 4 = 224/216
4. Add the two like fractions:
   45/216 + 224/216 = 45 + 224/216 = 269/216
5. So, 15/72 + 56/54 = 269/216
   In mixed form: 153/216

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