Add 54/12 and 72/14, Solve 4 6/12 + 5 2/14 as a fraction

Add 54/12 and 72/14

1^st number: 4 6/12, 2^nd number: 5 2/14

54/12 + 72/14 is 135/14.

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,
54/12 = 54 × 7/12 × 7 = 378/84
Likewise, for the 2nd fraction, since 14 × 6 = 84,
72/14 = 72 × 6/14 × 6 = 432/84
Add the two like fractions:
378/84 + 432/84 = 378 + 432/84 = 810/84
810/84 simplified gives 135/14
So, 54/12 + 72/14 = 135/14
In mixed form: 99/14

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