Add 1/42 and 30/18, Solve 1/42 + 1 12/18 as a fraction

Add 1/42 and 30/18

1^st number: 1/42, 2^nd number: 1 12/18

1/42 + 30/18 is 71/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
1/42 = 1 × 3/42 × 3 = 3/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126
Add the two like fractions:
3/126 + 210/126 = 3 + 210/126 = 213/126
213/126 simplified gives 71/42
So, 1/42 + 30/18 = 71/42
In mixed form: 129/42

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