Answers

Add 84/72 and 27/30

1^st number: 1 12/72, 2^nd number: 27/30

84/72 + 27/30 is 31/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 30 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 30 × 12 = 360,
   27/30 = 27 × 12/30 × 12 = 324/360
4. Add the two like fractions:
   420/360 + 324/360 = 420 + 324/360 = 744/360
5. 744/360 simplified gives 31/15
6. So, 84/72 + 27/30 = 31/15
   In mixed form: 21/15

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