Solutions by everydaycalculation.com

1st number: 1 12/15, 2nd number: 36/90

27/15 + 36/90 is 11/5.

1. Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
2. For the 1st fraction, since 15 × 6 = 90,
27/15 = 27 × 6/15 × 6 = 162/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
36/90 = 36 × 1/90 × 1 = 36/90
162/90 + 36/90 = 162 + 36/90 = 198/90
5. After reducing the fraction, the answer is 11/5
6. In mixed form: 21/5

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