Add 45/12 and 27/54, Solve 3 9/12 + 27/54 as a fraction

Add 45/12 and 27/54

1^st number: 3 9/12, 2^nd number: 27/54

45/12 + 27/54 is 17/4.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
27/54 = 27 × 2/54 × 2 = 54/108
Add the two like fractions:
405/108 + 54/108 = 405 + 54/108 = 459/108
459/108 simplified gives 17/4
So, 45/12 + 27/54 = 17/4
In mixed form: 41/4

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