Question

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Answer 1

1/18

Explanation:

`(1)/(9)`÷2

make 2 a fraction

`(1)/(9)`÷
`(2)/(1)`

cross multiply

1*1

9*2

`(1*1)/(9*2)`

`(1)/(18)`

Answer 2

Explanation:

You always invert the second number in a division question and then multiply. This one is a little different. It has three levels. What do you do about that?

`((1)/(9) )/((2)/(1) )`

Now you have a four level question which is handled the same way as all four level question.

Invert the bottom and multiply. Invert means turn upside down. So you turn the 2/1 upside down and you get 1/2

`(1)/(9)*(1)/(2)`

What you get is 1/18 The green box with the question mark is a 1.