Converting Fractions 2

3

4

we have looked at converting FRACTIONS to DECIMALS. We can also show fractions as PERCENTAGES.

PER CENT means OUT OF (per) 100 (cent)

is 75 % (the symbol for PERCENT)

Converting Fractions 2 - PERCENTAGES

To convert any FRACTION to a PERCENTAGE, first convert it to a DECIMAL.

3

10

is 0 . 3 as a decimal

Converting Fractions 2 - PERCENTAGES

With any decimal, it doesn’t matter how many zeroes we add to the numbers after the decimal point, as long as we write them after all the other numbers.0 . 3 = 0 . 3 0

= 0 . 3 0 0

= 0 . 3 0 0 0

and so on

Converting Fractions 2 - PERCENTAGES

For percent we only need 2 digits after the DECIMAL POINT.

0 . 3 = 0 . 3 0

multiply the number by 100 to get it to percentages

Remember: to x 100 we move the digits 2 places to the left.

0 . 3 0 x 100 = 30

Converting Fractions 2 - PERCENTAGES

0 . 3 = 0 . 3 0 = 30 %

Converting Fractions 2 - PERCENTAGES

0 . 7 3 = 73 %

0 . 8 9 = 89 %

if there are more than 2 numbers after the DECIMAL POINT, we use the same rules.

0 . 7 1 6 2 = 71 . 62 %

Converting Fractions 2 - PERCENTAGES

Common decimals and percentages:

0 . 1 10 %

0 . 2 20 %

0 . 5 50 %

0 . 9 90 %

0 . 25 25 %

1

10

1

5

1

2

9

10

1

4

Converting Fractions 2 - PERCENTAGES

Common decimals and percentages:

0 . 3 33 . 3 %

0 . 6 66 . 6 %

1

3

2

3

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