1 ÷ 4
= 1/4
4 < 17/4 < 9/2 < 19/4 < 5
the answer is 19/4 @ 4/3/4
First,you need to know what is the value for each line scale between the whole number.we choose number 1 ÷ 4 because number 1 is the simplest number to divide.If you use number 5,you might waste your time because you need to substract to get the value for each scale.we divide 1 by 4 because there are 4 space between the scale.Don't look at the line of the scale,but look at the space.That's the tips.