Question

What is the value of 5 + 2n if n = 3/4?

Answer 1

5 + 2*n = 5 + 2 * (3/4) = 5 + 6/4 = 5 + 3/2 = 6 1/2

6 1/2 = 13/2 as an improper fraction

Answer 2

$5+2n=? \\ n= \frac{3}{4} \\ 5+ \frac{2*3}{4}= 5+ \frac{6}{4}= \frac{5*4}{4} + \frac{6}{4}= \frac{20+6}{4}= \frac{26}{4}= \frac{13}{2}=6,5$
So the value of 5+2n is n=3/4 is 6,5 
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