Answers

Add 28/72 and 45/15

1^st number: 28/72, 2^nd number: 3 0/15

28/72 + 45/15 is 61/18.

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,
   28/72 = 28 × 5/72 × 5 = 140/360
3. Likewise, for the 2nd fraction, since 15 × 24 = 360,
   45/15 = 45 × 24/15 × 24 = 1080/360
4. Add the two like fractions:
   140/360 + 1080/360 = 140 + 1080/360 = 1220/360
5. 1220/360 simplified gives 61/18
6. So, 28/72 + 45/15 = 61/18
   In mixed form: 37/18

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