Add 28/12 and 90/27, Solve 2 4/12 + 3 9/27 as a fraction

Add 28/12 and 90/27

1^st number: 2 4/12, 2^nd number: 3 9/27

28/12 + 90/27 is 17/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
28/12 = 28 × 9/12 × 9 = 252/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
90/27 = 90 × 4/27 × 4 = 360/108
Add the two like fractions:
252/108 + 360/108 = 252 + 360/108 = 612/108
612/108 simplified gives 17/3
So, 28/12 + 90/27 = 17/3
In mixed form: 52/3

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