Add 20/81 and 28/12, Solve 20/81 + 2 4/12 as a fraction

Add 20/81 and 28/12

1^st number: 20/81, 2^nd number: 2 4/12

20/81 + 28/12 is 209/81.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324

Next, find the equivalent fraction of both fractional numbers with denominator 324
For the 1st fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324
Likewise, for the 2nd fraction, since 12 × 27 = 324,
28/12 = 28 × 27/12 × 27 = 756/324
Add the two like fractions:
80/324 + 756/324 = 80 + 756/324 = 836/324
836/324 simplified gives 209/81
So, 20/81 + 28/12 = 209/81
In mixed form: 247/81

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