Answers

Add 84/30 and 20/72

1^st number: 2 24/30, 2^nd number: 20/72

84/30 + 20/72 is 277/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 30 × 12 = 360,
   84/30 = 84 × 12/30 × 12 = 1008/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   20/72 = 20 × 5/72 × 5 = 100/360
4. Add the two like fractions:
   1008/360 + 100/360 = 1008 + 100/360 = 1108/360
5. 1108/360 simplified gives 277/90
6. So, 84/30 + 20/72 = 277/90
   In mixed form: 37/90

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