Add 9/21 and 84/63, Solve 9/21 + 1 21/63 as a fraction

Add 9/21 and 84/63

1^st number: 9/21, 2^nd number: 1 21/63

9/21 + 84/63 is 37/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 21 × 3 = 63,
9/21 = 9 × 3/21 × 3 = 27/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63
Add the two like fractions:
27/63 + 84/63 = 27 + 84/63 = 111/63
111/63 simplified gives 37/21
So, 9/21 + 84/63 = 37/21
In mixed form: 116/21

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