Answers

Add 84/72 and 90/15

1^st number: 1 12/72, 2^nd number: 6 0/15

84/72 + 90/15 is 43/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 15 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   84/72 = 84 × 5/72 × 5 = 420/360
3. Likewise, for the 2nd fraction, since 15 × 24 = 360,
   90/15 = 90 × 24/15 × 24 = 2160/360
4. Add the two like fractions:
   420/360 + 2160/360 = 420 + 2160/360 = 2580/360
5. 2580/360 simplified gives 43/6
6. So, 84/72 + 90/15 = 43/6
   In mixed form: 71/6

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