Question 270971
For this equation,

{{{(1/2)/(8)=10/x}}}

First, change the division into multiplication, multiply reciprocal, {{{(1/2)(1/8)=10/x}}}

Then, multiply both fractions on left side of equation:
1 times 1 = 1
2 times 8 = 16

{{{1/16=10/x}}}

Cross multiply:

1 times x = x
16 times 10 = 160

x=160