Add 12/24 and 20/21, Solve 12/24 + 20/21 as a fraction

Add 12/24 and 20/21

12/24 + 20/21 is 61/42.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
12/24 = 12 × 7/24 × 7 = 84/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
20/21 = 20 × 8/21 × 8 = 160/168
Add the two like fractions:
84/168 + 160/168 = 84 + 160/168 = 244/168
244/168 simplified gives 61/42
So, 12/24 + 20/21 = 61/42
In mixed form: 119/42

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