To make the ratio 71:53 to the form n:1, we must find the multiplier. In this case, to get from 53 to 1, we divide 53 by 53 (53/53=1)
So what we do to one side, we must do to the other. So to find n, we also divide the 71 by 53, which is 71/53 as a fraction. To find this as a decimal, you can use a calculator to get 1.339622641509434, however most questions will ask you to round to an integer or a specified decimal place if the decimal number is impractical. Therefore, the answer is 71/53:1