Add 8/7 and 18/54, Solve 1 1/7 + 18/54 as a fraction

Add 8/7 and 18/54

1^st number: 1 1/7, 2^nd number: 18/54

8/7 + 18/54 is 31/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
8/7 = 8 × 54/7 × 54 = 432/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378
Add the two like fractions:
432/378 + 126/378 = 432 + 126/378 = 558/378
558/378 simplified gives 31/21
So, 8/7 + 18/54 = 31/21
In mixed form: 110/21

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