Add 12/18 and 54/42, Solve 12/18 + 1 12/42 as a fraction

Add 12/18 and 54/42

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

12/18 + 54/42 is 41/21.

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,
12/18 = 12 × 7/18 × 7 = 84/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
54/42 = 54 × 3/42 × 3 = 162/126
Add the two like fractions:
84/126 + 162/126 = 84 + 162/126 = 246/126
246/126 simplified gives 41/21
So, 12/18 + 54/42 = 41/21
In mixed form: 120/21

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