Add 8/7 and 21/54, Solve 1 1/7 + 21/54 as a fraction

Add 8/7 and 21/54

1^st number: 1 1/7, 2^nd number: 21/54

8/7 + 21/54 is 193/126.

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,
21/54 = 21 × 7/54 × 7 = 147/378
Add the two like fractions:
432/378 + 147/378 = 432 + 147/378 = 579/378
579/378 simplified gives 193/126
So, 8/7 + 21/54 = 193/126
In mixed form: 167/126

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