Add 7/30 and 15/90
7/30 + 15/90 is 2/5.
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,
7/30 = 7 × 3/30 × 3 = 21/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Add the two like fractions:
21/90 + 15/90 = 21 + 15/90 = 36/90 - 36/90 simplified gives 2/5
- So, 7/30 + 15/90 = 2/5
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