Add 27/21 and 81/6, Solve 1 6/21 + 13 3/6 as a fraction

Add 27/21 and 81/6

1^st number: 1 6/21, 2^nd number: 13 3/6

27/21 + 81/6 is 207/14.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42
Likewise, for the 2nd fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42
Add the two like fractions:
54/42 + 567/42 = 54 + 567/42 = 621/42
621/42 simplified gives 207/14
So, 27/21 + 81/6 = 207/14
In mixed form: 1411/14

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