Answer:
[tex]-\frac{1}{32}[/tex]
Step-by-step explanation:
[tex]n = 8\\1/2(8) - 3/4(8) = 1/16-3/32[/tex]
Multiply the numerator and denomiator of 1/16 by 2 so that the denominators are equal and we can subtract.
[tex]\frac{1}{16} *\frac{2}{2} =\frac{2}{32}[/tex]
Then, subtract
[tex]\frac{2}{32} -\frac{3}{32} = \frac{2-3}{32} =- \frac{1}{32}[/tex]