Add 28/15 and 15/90
1st number: 1 13/15, 2nd number: 15/90
28/15 + 15/90 is 61/30.
Steps for adding fractions
- 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 - For the 1st fraction, since 15 × 6 = 90,
28/15 = 28 × 6/15 × 6 = 168/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Add the two like fractions:
168/90 + 15/90 = 168 + 15/90 = 183/90 - 183/90 simplified gives 61/30
- So, 28/15 + 15/90 = 61/30
In mixed form: 21/30
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