Add 15/12 and 5/7, Solve 1 3/12 + 5/7 as a fraction

Add 15/12 and 5/7

1^st number: 1 3/12, 2^nd number: 5/7

15/12 + 5/7 is 55/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 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 7 × 12 = 84,
5/7 = 5 × 12/7 × 12 = 60/84
Add the two like fractions:
105/84 + 60/84 = 105 + 60/84 = 165/84
165/84 simplified gives 55/28
So, 15/12 + 5/7 = 55/28
In mixed form: 127/28

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