Add 15/18 and 9/30
15/18 + 9/30 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
9/30 = 9 × 3/30 × 3 = 27/90 - Add the two like fractions:
75/90 + 27/90 = 75 + 27/90 = 102/90 - 102/90 simplified gives 17/15
- So, 15/18 + 9/30 = 17/15
In mixed form: 12/15
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