Add 30/84 and 21/6, Solve 30/84 + 3 3/6 as a fraction

Add 30/84 and 21/6

1^st number: 30/84, 2^nd number: 3 3/6

30/84 + 21/6 is 27/7.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 6 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84
Likewise, for the 2nd fraction, since 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84
Add the two like fractions:
30/84 + 294/84 = 30 + 294/84 = 324/84
324/84 simplified gives 27/7
So, 30/84 + 21/6 = 27/7
In mixed form: 36/7

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