Add 30/18 and 16/42, Solve 1 12/18 + 16/42 as a fraction

Add 30/18 and 16/42

1^st number: 1 12/18, 2^nd number: 16/42

30/18 + 16/42 is 43/21.

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,
30/18 = 30 × 7/18 × 7 = 210/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
16/42 = 16 × 3/42 × 3 = 48/126
Add the two like fractions:
210/126 + 48/126 = 210 + 48/126 = 258/126
258/126 simplified gives 43/21
So, 30/18 + 16/42 = 43/21
In mixed form: 21/21

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