Question

Rewrite 2/20 : 1/40 as a unit rate

Answer 1

Answer:4/1

Explanation:

I say this because you are supposed to divided it and the answer is 4 then you find the answer choice with a 1 as the denominator and it should say 4/1 and that is the correct answer.

Answer 2

`(4)/(1)`

Explanation:

Given:

2/20 : 1/40

A). First re-write the ratio as follows;

(i) Change the ratio sign to division (÷). i.e

2/20 ÷ 1/40

(ii) Solve the expression by changing the division to multiplication(×). This also means you will need to swap the numerator and the denominator of the second term. i.e (1 / 40) becomes (40 / 1)

(2/20) × (40 / 1) =
`(2)/(20)` ×
`(40)/(1)` =
`(4)/(1)`

B). Now convert the result from above to unit rate. A unit rate is a rate in which the denominator has a value of 1.

So to convert
`(4)/(1)` to unit rate, we keep simplifying until the denominator becomes 1.

And since the denominator is already 1, there is no need for further simplification.

Therefore, 2/20 : 1/40 to unit rate is
`(4)/(1)`