Fractions Toolkit (CIE IGCSE Maths: Extended)

One month, Gretal spent a total of $360 on presents.
She spent  of this total on presents for her parents.
She spent  of the remaining money on presents for her friends.
She spent the rest of the money on presents for her sisters.

Calculate the percentage of the $360 that she spent on presents for her sisters.

............................................. % 

Without using a calculator, work out  .
Write down all the steps of your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out 
You must show all your working and give your answer as a mixed number in its simplest form.

Giulio’s reaction times are measured in two games.
In the first game his reaction time is  of a second.
In the second game his reaction time is  of a second.
 
Find the difference between the two reaction times.

.................................................. s

Without using a calculator, work out .
You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out  .
Write down all the steps of your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out  .
You must show all your working and give your answer as a fraction.

Collette has $136 and spends half of her money on clothes and of her money on books.

Calculate the amount she has left.

$ ...............................................

Without using your calculator, work out .

You must show all your working and give your answer as a fraction in its simplest form.

Without using your calculator, work out .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out .
You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out  .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out 

You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out
You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out .
You must show all your working and give your answer as a fraction in its simplest form.

Without using your calculator, work out  .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out  .
You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, workout  .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out  . 
You must show all your working and give your answer as a mixed number in its simplest form.

Without using a calculator, work out .
You must show all your working and give your answer as a mixed number in its simplest form.

Without using your calculator, work out  .
You must show all your working and give your answer as a fraction in its simplest form.

Without using your calculator, work out  .
You must show all your working and give your answer as a fraction in its simplest form.

Without using a calculator, work out .

You must show all your working and give your answer as a fraction in its simplest form.