Add 1/18 and 63/42, Solve 1/18 + 1 21/42 as a fraction

Add 1/18 and 63/42

1^st number: 1/18, 2^nd number: 1 21/42

1/18 + 63/42 is 14/9.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
63/42 = 63 × 3/42 × 3 = 189/126
Add the two like fractions:
7/126 + 189/126 = 7 + 189/126 = 196/126
196/126 simplified gives 14/9
So, 1/18 + 63/42 = 14/9
In mixed form: 15/9

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