[" What is difference between "],[" biggest and smallest fraction "],[" among "2/3,3/4,4/5" and "5/6]

What is the difference between the biggest and the smallest fraction among (2)/(3),(3)/(4),(4)/(5) and (5)/(6)?(1)/(6)(b)(1)/(12)(c)(1)/(20) (d) (1)/(30)

The difference between the smallest and the largest fraction among 3/2 , 1/5 , 4/3 , 5/4 is

What is the difference between 4/5 of 1150 and 5/6 of 1248?

In 2/3 , 3/5 , 5/8 the difference between the the largest and the smallest fraction is

The difference between the greatest and smallest number formed by the digits 5,3,4,0 and 7 is__