If A : B = 3 : 2 ; B : C = 4 : 5, what is A : B : C ?

Convert 16 2/3 % into a fraction:

2/8 ÷5/8 = .........

What is the rational form of 0.031?

How many days are there from 15th January, 2001 to 15th May 2001, both days including ?

What part of an hour is five seconds?