Add 8/12 and 21/14, Solve 8/12 + 1 7/14 as a fraction

Add 8/12 and 21/14

1^st number: 8/12, 2^nd number: 1 7/14

8/12 + 21/14 is 13/6.

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,
8/12 = 8 × 7/12 × 7 = 56/84
Likewise, for the 2nd fraction, since 14 × 6 = 84,
21/14 = 21 × 6/14 × 6 = 126/84
Add the two like fractions:
56/84 + 126/84 = 56 + 126/84 = 182/84
182/84 simplified gives 13/6
So, 8/12 + 21/14 = 13/6
In mixed form: 21/6

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