Add 14/12 and 63/70, Solve 1 2/12 + 63/70 as a fraction

Add 14/12 and 63/70

1^st number: 1 2/12, 2^nd number: 63/70

14/12 + 63/70 is 31/15.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
14/12 = 14 × 35/12 × 35 = 490/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
63/70 = 63 × 6/70 × 6 = 378/420
Add the two like fractions:
490/420 + 378/420 = 490 + 378/420 = 868/420
868/420 simplified gives 31/15
So, 14/12 + 63/70 = 31/15
In mixed form: 21/15

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