Add 7/81 and 12/18
7/81 + 12/18 is 61/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 18 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
7/81 = 7 × 2/81 × 2 = 14/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
12/18 = 12 × 9/18 × 9 = 108/162 - Add the two like fractions:
14/162 + 108/162 = 14 + 108/162 = 122/162 - 122/162 simplified gives 61/81
- So, 7/81 + 12/18 = 61/81
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