Add 18/81 and 5/84
18/81 + 5/84 is 71/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 84 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
18/81 = 18 × 28/81 × 28 = 504/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
5/84 = 5 × 27/84 × 27 = 135/2268 - Add the two like fractions:
504/2268 + 135/2268 = 504 + 135/2268 = 639/2268 - 639/2268 simplified gives 71/252
- So, 18/81 + 5/84 = 71/252
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