Add 42/12 and 54/14, Solve 3 6/12 + 3 12/14 as a fraction

Add 42/12 and 54/14

1^st number: 3 6/12, 2^nd number: 3 12/14

42/12 + 54/14 is 103/14.

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,
42/12 = 42 × 7/12 × 7 = 294/84
Likewise, for the 2nd fraction, since 14 × 6 = 84,
54/14 = 54 × 6/14 × 6 = 324/84
Add the two like fractions:
294/84 + 324/84 = 294 + 324/84 = 618/84
618/84 simplified gives 103/14
So, 42/12 + 54/14 = 103/14
In mixed form: 75/14

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