Add 90/42 and 6/54, Solve 2 6/42 + 6/54 as a fraction

Add 90/42 and 6/54

1^st number: 2 6/42, 2^nd number: 6/54

90/42 + 6/54 is 142/63.

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,
90/42 = 90 × 9/42 × 9 = 810/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
6/54 = 6 × 7/54 × 7 = 42/378
Add the two like fractions:
810/378 + 42/378 = 810 + 42/378 = 852/378
852/378 simplified gives 142/63
So, 90/42 + 6/54 = 142/63
In mixed form: 216/63

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