Add 21/2 and 3/15, Solve 10 1/2 + 3/15 as a fraction

Add 21/2 and 3/15

1^st number: 10 1/2, 2^nd number: 3/15

21/2 + 3/15 is 107/10.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 2 × 15 = 30,
21/2 = 21 × 15/2 × 15 = 315/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
3/15 = 3 × 2/15 × 2 = 6/30
Add the two like fractions:
315/30 + 6/30 = 315 + 6/30 = 321/30
321/30 simplified gives 107/10
So, 21/2 + 3/15 = 107/10
In mixed form: 107/10

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