Add 12/90 and 15/81
12/90 + 15/81 is 43/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 90 × 9 = 810,
12/90 = 12 × 9/90 × 9 = 108/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
15/81 = 15 × 10/81 × 10 = 150/810 - Add the two like fractions:
108/810 + 150/810 = 108 + 150/810 = 258/810 - 258/810 simplified gives 43/135
- So, 12/90 + 15/81 = 43/135
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