Add 27/28 and 15/81
27/28 + 15/81 is 869/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
27/28 = 27 × 81/28 × 81 = 2187/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
15/81 = 15 × 28/81 × 28 = 420/2268 - Add the two like fractions:
2187/2268 + 420/2268 = 2187 + 420/2268 = 2607/2268 - 2607/2268 simplified gives 869/756
- So, 27/28 + 15/81 = 869/756
In mixed form: 1113/756
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