Add 40/81 and 18/28
40/81 + 18/28 is 1289/1134.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
40/81 = 40 × 28/81 × 28 = 1120/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
18/28 = 18 × 81/28 × 81 = 1458/2268 - Add the two like fractions:
1120/2268 + 1458/2268 = 1120 + 1458/2268 = 2578/2268 - 2578/2268 simplified gives 1289/1134
- So, 40/81 + 18/28 = 1289/1134
In mixed form: 1155/1134
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