Add 18/36 and 20/81
18/36 + 20/81 is 121/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
18/36 = 18 × 9/36 × 9 = 162/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324 - Add the two like fractions:
162/324 + 80/324 = 162 + 80/324 = 242/324 - 242/324 simplified gives 121/162
- So, 18/36 + 20/81 = 121/162
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