A set of positive and negative rational numbers is shown. 8/9 , –1/6 , 3/5 , 4/11 , –2/7 What is the difference between the largest and the smallest numbers in the list?
The smallest one is -2/7 The largest one is 8/9 The difference between them is 8/9 - - 2/7 = 8/9 + 2/7 = 7*8/9*7 + 2*9/9*7 = 56 / 63 + 18 / 63 = 74 / 63 = 1 11/63
