Add 54/14 and 18/3, Solve 3 12/14 + 6 0/3 as a fraction

Add 54/14 and 18/3

1^st number: 3 12/14, 2^nd number: 6 0/3

54/14 + 18/3 is 69/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 3 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
54/14 = 54 × 3/14 × 3 = 162/42
Likewise, for the 2nd fraction, since 3 × 14 = 42,
18/3 = 18 × 14/3 × 14 = 252/42
Add the two like fractions:
162/42 + 252/42 = 162 + 252/42 = 414/42
414/42 simplified gives 69/7
So, 54/14 + 18/3 = 69/7
In mixed form: 96/7

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