Add 15/81 and 7/30
15/81 + 7/30 is 113/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
15/81 = 15 × 10/81 × 10 = 150/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
7/30 = 7 × 27/30 × 27 = 189/810 - Add the two like fractions:
150/810 + 189/810 = 150 + 189/810 = 339/810 - 339/810 simplified gives 113/270
- So, 15/81 + 7/30 = 113/270
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