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Jan 312012
 

This quiz starts with entry level questions but to win a million you need to be able to solve equations and be an expert at 3d shapes! Who wants to be a mathionaire?

Jan 152012
 

To compare fractions, decimals and percentages change everything to decimals first.

So to place , 0.7 and 76% in order

= 0.75  (divide the numerator by the denominator)

76% = 0.76

So the correct order, smallest first is 0.7, , 76%

Try these

First exercise.

Second exercise

Third exercise.

Jan 152012
 

Students often need to be able to compare fractions. Do you know which is bigger between and ?

means the whole has been divided into 5 equal pieces and you have one of them.

means the whole has been divided into 6 equal pieces and you have one of them.

The fraction wall shows that the larger the denominator, the smaller each piece becomes, so is greater than .

Try this exercise to choose the biggest fraction.

Nov 012011
 

Converting between decimals and fractions

 

Thanks to John Ford for this quiz.

You need to be able to convert fractions to decimals and decimals to fractions.

To convert a fraction to a decimal divide the numerator (top number) by the denominator (bottom number).

eg 3/4

3÷4 = 0.75

To change a decimal to a fraction think what place value the number on the right hand side has.

eg 0.45

The 5 is in the hundredths column, so the denominator will be 100.

The numerator is 45

So 0.45 = 45/100

This cancels down as both numbers divide by 5.

45/100 = 9/20