Answers

Add 72/4 and 80/16

1^st number: 18 0/4, 2^nd number: 5 0/16

72/4 + 80/16 is 23/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 16 is 16
   
   Next, find the equivalent fraction of both fractional numbers with denominator 16
2. For the 1st fraction, since 4 × 4 = 16,
   72/4 = 72 × 4/4 × 4 = 288/16
3. Likewise, for the 2nd fraction, since 16 × 1 = 16,
   80/16 = 80 × 1/16 × 1 = 80/16
4. Add the two like fractions:
   288/16 + 80/16 = 288 + 80/16 = 368/16
5. 368/16 simplified gives 23/1
6. So, 72/4 + 80/16 = 23/1

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