Add 7/42 and 63/18, Solve 7/42 + 3 9/18 as a fraction

Add 7/42 and 63/18

1^st number: 7/42, 2^nd number: 3 9/18

7/42 + 63/18 is 11/3.

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,
7/42 = 7 × 3/42 × 3 = 21/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126
Add the two like fractions:
21/126 + 441/126 = 21 + 441/126 = 462/126
462/126 simplified gives 11/3
So, 7/42 + 63/18 = 11/3
In mixed form: 32/3

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