Answers

Add 45/16 and 54/72

1^st number: 2 13/16, 2^nd number: 54/72

45/16 + 54/72 is 57/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 72 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 16 × 9 = 144,
   45/16 = 45 × 9/16 × 9 = 405/144
3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
   54/72 = 54 × 2/72 × 2 = 108/144
4. Add the two like fractions:
   405/144 + 108/144 = 405 + 108/144 = 513/144
5. 513/144 simplified gives 57/16
6. So, 45/16 + 54/72 = 57/16
   In mixed form: 39/16

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