Add 15/12 and 81/14, Solve 1 3/12 + 5 11/14 as a fraction

Add 15/12 and 81/14

1^st number: 1 3/12, 2^nd number: 5 11/14

15/12 + 81/14 is 197/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
15/12 = 15 × 7/12 × 7 = 105/84
Likewise, for the 2nd fraction, since 14 × 6 = 84,
81/14 = 81 × 6/14 × 6 = 486/84
Add the two like fractions:
105/84 + 486/84 = 105 + 486/84 = 591/84
591/84 simplified gives 197/28
So, 15/12 + 81/14 = 197/28
In mixed form: 71/28

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