Add 3/42 and 18/9, Solve 3/42 + 2 0/9 as a fraction

Add 3/42 and 18/9

1^st number: 3/42, 2^nd number: 2 0/9

3/42 + 18/9 is 29/14.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
3/42 = 3 × 3/42 × 3 = 9/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
18/9 = 18 × 14/9 × 14 = 252/126
Add the two like fractions:
9/126 + 252/126 = 9 + 252/126 = 261/126
261/126 simplified gives 29/14
So, 3/42 + 18/9 = 29/14
In mixed form: 21/14

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