Add 1/18 and 80/81
1/18 + 80/81 is 169/162.
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,
1/18 = 1 × 9/18 × 9 = 9/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
80/81 = 80 × 2/81 × 2 = 160/162 - Add the two like fractions:
9/162 + 160/162 = 9 + 160/162 = 169/162 - So, 1/18 + 80/81 = 169/162
In mixed form: 17/162
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