Add 15/81 and 28/9
1st number: 15/81, 2nd number: 3 1/9
15/81 + 28/9 is 89/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
15/81 = 15 × 1/81 × 1 = 15/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
28/9 = 28 × 9/9 × 9 = 252/81 - Add the two like fractions:
15/81 + 252/81 = 15 + 252/81 = 267/81 - 267/81 simplified gives 89/27
- So, 15/81 + 28/9 = 89/27
In mixed form: 38/27
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