Add 84/42 and 45/54, Solve 2 0/42 + 45/54 as a fraction

Add 84/42 and 45/54

1^st number: 2 0/42, 2^nd number: 45/54

84/42 + 45/54 is 17/6.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
84/42 = 84 × 9/42 × 9 = 756/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378
Add the two like fractions:
756/378 + 315/378 = 756 + 315/378 = 1071/378
1071/378 simplified gives 17/6
So, 84/42 + 45/54 = 17/6
In mixed form: 25/6

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