Question 746413
First let's reduce:

{{{
(2/5)/(16/30)}}}   becomes     {{{(2/5)/(8/15)}}}


then we convert to multiplication by inverting the divisor:


{{{
(2/5)*(15/8)

}}}


or


{{{
(2*15)/(5*8)
}}}


Factor before we multiply...


{{{

(1*3)*(1*4)
}}}

which is 3/4


:)