Add 20/54 and 21/81
20/54 + 21/81 is 17/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 54 × 3 = 162,
20/54 = 20 × 3/54 × 3 = 60/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
21/81 = 21 × 2/81 × 2 = 42/162 - Add the two like fractions:
60/162 + 42/162 = 60 + 42/162 = 102/162 - 102/162 simplified gives 17/27
- So, 20/54 + 21/81 = 17/27
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