36/40 is the same as 9/10. 36 goes into four, nine times. 36 / 4 = 9. 40 goes in four, ten times. 40 / 4 = 10. If you are dividing a number by a fraction, lets say the numerator, then the same number you divided has to be divided by the denominator. For example: 5/30 The numerator 5 goes into five, one time, because 5 / 5 = 1 You divide the same number 5, for the denominator also. 30 goes into five, six times, because 30 / 5 = 6 The simplest form of 5/30 is 1/6. Hope this helps! -AphmauSenpai-