Add 28/54 and 90/12, Solve 28/54 + 7 6/12 as a fraction

Add 28/54 and 90/12

1^st number: 28/54, 2^nd number: 7 6/12

28/54 + 90/12 is 433/54.

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

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 54 × 2 = 108,
28/54 = 28 × 2/54 × 2 = 56/108
Likewise, for the 2nd fraction, since 12 × 9 = 108,
90/12 = 90 × 9/12 × 9 = 810/108
Add the two like fractions:
56/108 + 810/108 = 56 + 810/108 = 866/108
866/108 simplified gives 433/54
So, 28/54 + 90/12 = 433/54
In mixed form: 81/54

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