Add 20/27 and 28/81
20/27 + 28/81 is 88/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 27 × 3 = 81,
20/27 = 20 × 3/27 × 3 = 60/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
28/81 = 28 × 1/81 × 1 = 28/81 - Add the two like fractions:
60/81 + 28/81 = 60 + 28/81 = 88/81 - So, 20/27 + 28/81 = 88/81
In mixed form: 17/81
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