Add 63/12 and 48/7, Solve 5 3/12 + 6 6/7 as a fraction

Add 63/12 and 48/7

1^st number: 5 3/12, 2^nd number: 6 6/7

63/12 + 48/7 is 339/28.

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,
63/12 = 63 × 7/12 × 7 = 441/84
Likewise, for the 2nd fraction, since 7 × 12 = 84,
48/7 = 48 × 12/7 × 12 = 576/84
Add the two like fractions:
441/84 + 576/84 = 441 + 576/84 = 1017/84
1017/84 simplified gives 339/28
So, 63/12 + 48/7 = 339/28
In mixed form: 123/28

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