Add 21/27 and 28/9, Solve 21/27 + 3 1/9 as a fraction

Add 21/27 and 28/9

1^st number: 21/27, 2^nd number: 3 1/9

21/27 + 28/9 is 35/9.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27

Next, find the equivalent fraction of both fractional numbers with denominator 27
For the 1st fraction, since 27 × 1 = 27,
21/27 = 21 × 1/27 × 1 = 21/27
Likewise, for the 2nd fraction, since 9 × 3 = 27,
28/9 = 28 × 3/9 × 3 = 84/27
Add the two like fractions:
21/27 + 84/27 = 21 + 84/27 = 105/27
105/27 simplified gives 35/9
So, 21/27 + 28/9 = 35/9
In mixed form: 38/9

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