Add 9/54 and 81/42, Solve 9/54 + 1 39/42 as a fraction

Add 9/54 and 81/42

1^st number: 9/54, 2^nd number: 1 39/42

9/54 + 81/42 is 44/21.

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,
9/54 = 9 × 7/54 × 7 = 63/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
81/42 = 81 × 9/42 × 9 = 729/378
Add the two like fractions:
63/378 + 729/378 = 63 + 729/378 = 792/378
792/378 simplified gives 44/21
So, 9/54 + 81/42 = 44/21
In mixed form: 22/21

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