Add 15/30 and 18/90
15/30 + 18/90 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
15/30 = 15 × 3/30 × 3 = 45/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Add the two like fractions:
45/90 + 18/90 = 45 + 18/90 = 63/90 - 63/90 simplified gives 7/10
- So, 15/30 + 18/90 = 7/10
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