Add 27/21 and 30/9, Solve 1 6/21 + 3 3/9 as a fraction

Add 27/21 and 30/9

1^st number: 1 6/21, 2^nd number: 3 3/9

27/21 + 30/9 is 97/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 21 × 3 = 63,
27/21 = 27 × 3/21 × 3 = 81/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
30/9 = 30 × 7/9 × 7 = 210/63
Add the two like fractions:
81/63 + 210/63 = 81 + 210/63 = 291/63
291/63 simplified gives 97/21
So, 27/21 + 30/9 = 97/21
In mixed form: 413/21

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