Answers

Add 80/72 and 28/36

1^st number: 1 8/72, 2^nd number: 28/36

80/72 + 28/36 is 17/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 36 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   80/72 = 80 × 1/72 × 1 = 80/72
3. Likewise, for the 2nd fraction, since 36 × 2 = 72,
   28/36 = 28 × 2/36 × 2 = 56/72
4. Add the two like fractions:
   80/72 + 56/72 = 80 + 56/72 = 136/72
5. 136/72 simplified gives 17/9
6. So, 80/72 + 28/36 = 17/9
   In mixed form: 18/9

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