Question

Express in it simplest form
45cm :0.1m​

Answer 1

`(9)/(2)`

or

`(4.5)/(1)`

Explanation:

we have

`(45)/(0.1)(cm)/(m)`

we know that

`0.1=(1)/(10)`

substitute

`(45)/(0.1)(cm)/(m)=(45)/((1/10))=(450)/(1)(cm)/(m)`

Remember that

`1 \ m=100\ cm`

substitute

`(450)/(1)(cm)/(m)=(450)/(100)(cm)/(cm)`

Simplify

`(450)/(100)(cm)/(cm)=(9)/(2)`

or

`(4.5)/(1)`