Step 1: To find the expression wherein the above can be a sum of three fractions, lets first convert to improper fraction
[tex]\begin{gathered} 1\frac{1}{2}\text{ =}1+\frac{1}{2} \\ =\frac{1}{1}+\frac{1}{2}=\frac{2+1}{2} \\ =\frac{3}{2} \end{gathered}[/tex]Step 2: Check the options given
Then, let's check option A
[tex]\frac{1}{8}\text{ + }\frac{2}{8}\text{ +}\frac{2}{4}\text{ = }\frac{1}{8}\text{ + }\frac{2}{8}\text{ +}\frac{4}{8}\text{ =}\frac{7}{8}[/tex]Option A is wrong
Let's try option B
[tex]\frac{2}{8}\text{ +}\frac{3}{8}\text{ + }\frac{5}{8}\text{ = }\frac{10}{8}\text{ =}\frac{5}{4}[/tex]Option B is wrong
Let's try option C
[tex]\frac{2}{4}\text{ +}\frac{2}{4}+\frac{2}{4}\text{ =}\frac{6}{4}\text{ =}\frac{3}{2}[/tex]Option C is correct
lets also check for option D
[tex]\frac{3}{4}\text{ +}\frac{2}{4}+\frac{2}{4}=\frac{7}{4}[/tex]Option D is wrong
The answer is option C