Add 12/24 and 84/21, Solve 12/24 + 4 0/21 as a fraction

Add 12/24 and 84/21

1^st number: 12/24, 2^nd number: 4 0/21

12/24 + 84/21 is 9/2.

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,
84/21 = 84 × 8/21 × 8 = 672/168
Add the two like fractions:
84/168 + 672/168 = 84 + 672/168 = 756/168
756/168 simplified gives 9/2
So, 12/24 + 84/21 = 9/2
In mixed form: 41/2

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