Add 90/42 and 4/12, Solve 2 6/42 + 4/12 as a fraction

Add 90/42 and 4/12

1^st number: 2 6/42, 2^nd number: 4/12

90/42 + 4/12 is 52/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
90/42 = 90 × 2/42 × 2 = 180/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
4/12 = 4 × 7/12 × 7 = 28/84
Add the two like fractions:
180/84 + 28/84 = 180 + 28/84 = 208/84
208/84 simplified gives 52/21
So, 90/42 + 4/12 = 52/21
In mixed form: 210/21

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