Answers

Add 80/15 and 84/72

1^st number: 5 5/15, 2^nd number: 1 12/72

80/15 + 84/72 is 13/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 15 × 24 = 360,
   80/15 = 80 × 24/15 × 24 = 1920/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   84/72 = 84 × 5/72 × 5 = 420/360
4. Add the two like fractions:
   1920/360 + 420/360 = 1920 + 420/360 = 2340/360
5. 2340/360 simplified gives 13/2
6. So, 80/15 + 84/72 = 13/2
   In mixed form: 61/2

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