Add 20/81 and 28/27
1st number: 20/81, 2nd number: 1 1/27
20/81 + 28/27 is 104/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 27 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
20/81 = 20 × 1/81 × 1 = 20/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
28/27 = 28 × 3/27 × 3 = 84/81 - Add the two like fractions:
20/81 + 84/81 = 20 + 84/81 = 104/81 - So, 20/81 + 28/27 = 104/81
In mixed form: 123/81
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