Add 42/81 and 9/18
42/81 + 9/18 is 55/54.
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,
42/81 = 42 × 2/81 × 2 = 84/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
9/18 = 9 × 9/18 × 9 = 81/162 - Add the two like fractions:
84/162 + 81/162 = 84 + 81/162 = 165/162 - 165/162 simplified gives 55/54
- So, 42/81 + 9/18 = 55/54
In mixed form: 11/54
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