Add 54/14 and 36/18, Solve 3 12/14 + 2 0/18 as a fraction

Add 54/14 and 36/18

1^st number: 3 12/14, 2^nd number: 2 0/18

54/14 + 36/18 is 41/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
54/14 = 54 × 9/14 × 9 = 486/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126
Add the two like fractions:
486/126 + 252/126 = 486 + 252/126 = 738/126
738/126 simplified gives 41/7
So, 54/14 + 36/18 = 41/7
In mixed form: 56/7

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