Add 27/9 and 20/84, Solve 3 0/9 + 20/84 as a fraction

Add 27/9 and 20/84

1^st number: 3 0/9, 2^nd number: 20/84

27/9 + 20/84 is 68/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 9 × 28 = 252,
27/9 = 27 × 28/9 × 28 = 756/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252
Add the two like fractions:
756/252 + 60/252 = 756 + 60/252 = 816/252
816/252 simplified gives 68/21
So, 27/9 + 20/84 = 68/21
In mixed form: 35/21

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