Question 57360
This is a trick kinda fraction question on civil service exams :
to work it  do this ...
(it is a mixed fraction and the fraction of 2/3 is NOT included as a decimal point for the solution.

0.64 2/3 = 
3*64+2/300  [remove decimal point from numerator and multiply 100 to denominator)
then you have     
194/300  which makes it divisible to simplify /so the simplifier is 2 
= 97/150 is the correct answer.