Add 21/2 and 63/10, Solve 10 1/2 + 6 3/10 as a fraction

Add 21/2 and 63/10

1^st number: 10 1/2, 2^nd number: 6 3/10

21/2 + 63/10 is 84/5.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10

Next, find the equivalent fraction of both fractional numbers with denominator 10
For the 1st fraction, since 2 × 5 = 10,
21/2 = 21 × 5/2 × 5 = 105/10
Likewise, for the 2nd fraction, since 10 × 1 = 10,
63/10 = 63 × 1/10 × 1 = 63/10
Add the two like fractions:
105/10 + 63/10 = 105 + 63/10 = 168/10
168/10 simplified gives 84/5
So, 21/2 + 63/10 = 84/5
In mixed form: 164/5

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