Add 3/54 and 30/21, Solve 3/54 + 1 9/21 as a fraction

Add 3/54 and 30/21

1^st number: 3/54, 2^nd number: 1 9/21

3/54 + 30/21 is 187/126.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
3/54 = 3 × 7/54 × 7 = 21/378
Likewise, for the 2nd fraction, since 21 × 18 = 378,
30/21 = 30 × 18/21 × 18 = 540/378
Add the two like fractions:
21/378 + 540/378 = 21 + 540/378 = 561/378
561/378 simplified gives 187/126
So, 3/54 + 30/21 = 187/126
In mixed form: 161/126

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