Add 5/2 and 42/21, Solve 2 1/2 + 2 0/21 as a fraction

Add 5/2 and 42/21

1^st number: 2 1/2, 2^nd number: 2 0/21

5/2 + 42/21 is 9/2.

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,
5/2 = 5 × 21/2 × 21 = 105/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
42/21 = 42 × 2/21 × 2 = 84/42
Add the two like fractions:
105/42 + 84/42 = 105 + 84/42 = 189/42
189/42 simplified gives 9/2
So, 5/2 + 42/21 = 9/2
In mixed form: 41/2

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