Add 84/18 and 3/12, Solve 4 12/18 + 3/12 as a fraction

Add 84/18 and 3/12

1^st number: 4 12/18, 2^nd number: 3/12

84/18 + 3/12 is 59/12.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36
Add the two like fractions:
168/36 + 9/36 = 168 + 9/36 = 177/36
177/36 simplified gives 59/12
So, 84/18 + 3/12 = 59/12
In mixed form: 411/12

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