Add 36/8 and 21/84, Solve 4 4/8 + 21/84 as a fraction

Add 36/8 and 21/84

1^st number: 4 4/8, 2^nd number: 21/84

36/8 + 21/84 is 19/4.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
36/8 = 36 × 21/8 × 21 = 756/168
Likewise, for the 2nd fraction, since 84 × 2 = 168,
21/84 = 21 × 2/84 × 2 = 42/168
Add the two like fractions:
756/168 + 42/168 = 756 + 42/168 = 798/168
798/168 simplified gives 19/4
So, 36/8 + 21/84 = 19/4
In mixed form: 43/4

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