Add 28/27 and 84/15, Solve 1 1/27 + 5 9/15 as a fraction

Add 28/27 and 84/15

1^st number: 1 1/27, 2^nd number: 5 9/15

28/27 + 84/15 is 896/135.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 27 × 5 = 135,
28/27 = 28 × 5/27 × 5 = 140/135
Likewise, for the 2nd fraction, since 15 × 9 = 135,
84/15 = 84 × 9/15 × 9 = 756/135
Add the two like fractions:
140/135 + 756/135 = 140 + 756/135 = 896/135
So, 28/27 + 84/15 = 896/135
In mixed form: 686/135

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