Step-by-step explanation:
[tex]\sqrt{1/8}[/tex]=[tex]\sqrt{1} /\sqrt{8}[/tex]
[tex]\sqrt{8} =2\sqrt{2}[/tex]
[tex]1/(2\sqrt{2} )[/tex]
if the denominator is a root then multiply itself by itself to get an integer
[tex]1(2\sqrt{2} )/((2\sqrt{2})(2\sqrt{2} ))[/tex]
[tex]\sqrt{2} /4[/tex]
Hope that helps :)