Question

What is 9.0 divided by 0.9?

Answer 1

`10`

Explanation:

We know that `0.9=0.9/1=[0.9xx10]/(1xx10)=9/10`

Then, `9.0/0.9=9/(9/10)`

`color(red)("i.e. " 9 -: 9/10 = 9 xx 10/9, "dividing by a fraction means multiplying by the reciprocal of that fraction."`

`=90/9 = 10`