Add 63/2 and 12/21, Solve 31 1/2 + 12/21 as a fraction

Add 63/2 and 12/21

1^st number: 31 1/2, 2^nd number: 12/21

63/2 + 12/21 is 449/14.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
63/2 = 63 × 21/2 × 21 = 1323/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
12/21 = 12 × 2/21 × 2 = 24/42
Add the two like fractions:
1323/42 + 24/42 = 1323 + 24/42 = 1347/42
1347/42 simplified gives 449/14
So, 63/2 + 12/21 = 449/14
In mixed form: 321/14

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