Add 8/21 and 81/5, Solve 8/21 + 16 1/5 as a fraction

Add 8/21 and 81/5

1^st number: 8/21, 2^nd number: 16 1/5

8/21 + 81/5 is 1741/105.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
8/21 = 8 × 5/21 × 5 = 40/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
81/5 = 81 × 21/5 × 21 = 1701/105
Add the two like fractions:
40/105 + 1701/105 = 40 + 1701/105 = 1741/105
So, 8/21 + 81/5 = 1741/105
In mixed form: 1661/105

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