Answers

Add 72/16 and 45/18

1^st number: 4 8/16, 2^nd number: 2 9/18

72/16 + 45/18 is 7/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 18 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 16 × 9 = 144,
   72/16 = 72 × 9/16 × 9 = 648/144
3. Likewise, for the 2nd fraction, since 18 × 8 = 144,
   45/18 = 45 × 8/18 × 8 = 360/144
4. Add the two like fractions:
   648/144 + 360/144 = 648 + 360/144 = 1008/144
5. 1008/144 simplified gives 7/1
6. So, 72/16 + 45/18 = 7/1

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