The question given is
[tex]\frac{7}{2}-\frac{8}{10}[/tex]Step 1: Calculate the L.C.M of 2 and 10
Step 2: Adjust the Denominator based on the L.C.M
[tex]\begin{gathered} \frac{7}{2}-\frac{8}{10} \\ \frac{=(7\times5)-(8\times1)}{10} \\ =\frac{35-8}{10} \\ =\frac{27}{10} \end{gathered}[/tex]Hene,
The final answer = 27/10