Add 3/54 and 45/42, Solve 3/54 + 1 3/42 as a fraction

Add 3/54 and 45/42

1^st number: 3/54, 2^nd number: 1 3/42

3/54 + 45/42 is 71/63.

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,
3/54 = 3 × 7/54 × 7 = 21/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
45/42 = 45 × 9/42 × 9 = 405/378
Add the two like fractions:
21/378 + 405/378 = 21 + 405/378 = 426/378
426/378 simplified gives 71/63
So, 3/54 + 45/42 = 71/63
In mixed form: 18/63

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