Answer:
[tex]\frac{3}{8}[/tex]
Step-by-step explanation:
[tex]1/2 - 1/8\\\frac{1}{2}-\frac{1}{8}\\\\\mathrm{Least\:Common\:Multiplier\:of\:}2,\:8:\quad 8\\\\\mathrm{Adjust\:Fractions\:based\:on\:the\:LCM}\\\frac{1}{2}=\frac{1\times\:4}{2\times\:4}=\frac{4}{8}\\\\=\frac{4}{8}-\frac{1}{8}\\\\=\frac{4-1}{8}\\\\=\frac{3}{8}[/tex]