Add 3/84 and 15/27, Solve 3/84 + 15/27 as a fraction

Add 3/84 and 15/27

3/84 + 15/27 is 149/252.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 84 × 9 = 756,
3/84 = 3 × 9/84 × 9 = 27/756
Likewise, for the 2nd fraction, since 27 × 28 = 756,
15/27 = 15 × 28/27 × 28 = 420/756
Add the two like fractions:
27/756 + 420/756 = 27 + 420/756 = 447/756
447/756 simplified gives 149/252
So, 3/84 + 15/27 = 149/252

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