Add 27/15 and 27/84, Solve 1 12/15 + 27/84 as a fraction

Add 27/15 and 27/84

1^st number: 1 12/15, 2^nd number: 27/84

27/15 + 27/84 is 297/140.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
27/15 = 27 × 28/15 × 28 = 756/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420
Add the two like fractions:
756/420 + 135/420 = 756 + 135/420 = 891/420
891/420 simplified gives 297/140
So, 27/15 + 27/84 = 297/140
In mixed form: 217/140

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