Add 63/5 and 2/21, Solve 12 3/5 + 2/21 as a fraction

Add 63/5 and 2/21

1^st number: 12 3/5, 2^nd number: 2/21

63/5 + 2/21 is 1333/105.

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

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
63/5 = 63 × 21/5 × 21 = 1323/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
2/21 = 2 × 5/21 × 5 = 10/105
Add the two like fractions:
1323/105 + 10/105 = 1323 + 10/105 = 1333/105
So, 63/5 + 2/21 = 1333/105
In mixed form: 1273/105

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