So first convert hours to minutes and we know that 1 hour is 60minutes. So 1/5th of an hour would be one fifth of 60 mins right? So to fnd what a certain fraction of a certain number is you have to multiply the numerator of the fraction by the number(60) and put it over the denominator (5). So you get 1 multiplied by 60/5.Which is 60/5. And we divide 60/5 to get 12. So the answer is 12 minuets. Hope this helps:)