Add 84/24 and 18/42, Solve 3 12/24 + 18/42 as a fraction

Add 84/24 and 18/42

1^st number: 3 12/24, 2^nd number: 18/42

84/24 + 18/42 is 55/14.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
84/24 = 84 × 7/24 × 7 = 588/168
Likewise, for the 2nd fraction, since 42 × 4 = 168,
18/42 = 18 × 4/42 × 4 = 72/168
Add the two like fractions:
588/168 + 72/168 = 588 + 72/168 = 660/168
660/168 simplified gives 55/14
So, 84/24 + 18/42 = 55/14
In mixed form: 313/14

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