Question 1068689
Numbers without units of measure or count of what are just numbers and so your problem description is faulty, but you are looking for this:


{{{8/135=7/X}}}


The simple steps,

{{{(8/135)*X=(7/X)*X}}}


{{{(8/135)X=7}}}


{{{X=7(135/8)}}}


{{{X=945/8}}}  or {{{X=118&1/8}}}