What is difference between biggest and smallest fraction among \(\dfrac 23, \dfrac 34, \dfrac 45\) and \(\dfrac 56\) ?
Answer: C
\(\dfrac 23=0.66\\ \dfrac 34=0.75\\ \dfrac 45=0.8\\ \dfrac 56=0.833\)
So biggest is \(\dfrac 56\) and smallest is \(\dfrac 23\)
Their difference is \(\dfrac 56 - \dfrac 23 = \dfrac 16\)