Add 84/54 and 75/42, Solve 1 30/54 + 1 33/42 as a fraction

Add 84/54 and 75/42

1^st number: 1 30/54, 2^nd number: 1 33/42

84/54 + 75/42 is 421/126.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
84/54 = 84 × 7/54 × 7 = 588/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
75/42 = 75 × 9/42 × 9 = 675/378
Add the two like fractions:
588/378 + 675/378 = 588 + 675/378 = 1263/378
1263/378 simplified gives 421/126
So, 84/54 + 75/42 = 421/126
In mixed form: 343/126

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