Math 6

What is the reciprocal of $$3\frac{3}{7}$$  ?

What is the simplest form of 60 : 24 ?

What is $$\frac{2}{5}\ +\ \frac{1}{3}$$   ?

What should replace n in $$\frac{8}{11}$$   x n = 1 ?

How many halves are there in $$3\frac{1}{2}$$  ?

What is the product of  $$\frac{1}{2},\ \frac{2}{3},\ \frac{3}{4}\ and\ \frac{4}{5}$$   ?

What is $$6\ -\ 2\frac{6}{15}$$    in simplest form?

There are 63 students in a room.   $$\frac{5}{9}$$  of the students are boys.  How many students are girls?

It takes 15 people to clean the swimming pool in 3 hours. How long will it take 9 people to clean the same swimming pool?

What is the missing number in _____ ÷ 100 = 8.967?