Add 12/18 and 21/81
12/18 + 21/81 is 25/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
12/18 = 12 × 9/18 × 9 = 108/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
21/81 = 21 × 2/81 × 2 = 42/162 - Add the two like fractions:
108/162 + 42/162 = 108 + 42/162 = 150/162 - 150/162 simplified gives 25/27
- So, 12/18 + 21/81 = 25/27
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