Question

4/9 / 9/5= the answer is

Answer 1

20/81

Explanation:

Without parentheses, it is hard to tell what you are dividing. We assume you want ...

(4/9)/(9/5)

Then ...

`\displaystyle(\left((4)/(9)\right))/(\left((9)/(5)\right))=(4)/(9)\cdot(5)/(9)=(4\cdot 5)/(9\cdot 9)=(20)/(81)`

_____

As written (without parentheses), your expression is evaluated left to right, so evaluates to ...

4/(9·9·5) = 4/405