Answers

Add 45/15 and 72/90

1^st number: 3 0/15, 2^nd number: 72/90

45/15 + 72/90 is 19/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 15 × 6 = 90,
   45/15 = 45 × 6/15 × 6 = 270/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   72/90 = 72 × 1/90 × 1 = 72/90
4. Add the two like fractions:
   270/90 + 72/90 = 270 + 72/90 = 342/90
5. 342/90 simplified gives 19/5
6. So, 45/15 + 72/90 = 19/5
   In mixed form: 34/5

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