Decimal or Fraction to Percentage
Find percentage of an amount
Express one number as a percentage of another
Ratio
Lucky/Unlucky Dip
100

0.25 as a percentage

25%

100

10% of 50

5

100

25 out of 100 = ?%

25%

100

Simplify:

8 : 12

2 : 3

100

Increase 60 by 10%

10% = 6

110% = 60 + 6 = 66

200

Convert to a percentage

3/4

75%

200

20% of 200

40

200

30 out of 150 = ?%

20%

200

0.3 : 0.9

1 : 3

200

Decrease 50 by 20%

10% = 5

20% = 10

50 - 10 

= 40

300

What percent is 0.6

60%

300

75% of 60

45

300

45 out of 90 = ?%

50%

300

25cm : 1.25m

25 : 125

1 : 5

300

What does "MJ" stand for in Mrs Simms name?

(spelled correctly)

Mary-Jean

400

Convert to a percentage

3/8

37.5%

400

12% of 450

54

400

60 out of 75 = ?%

80%

400

72 cents : $3.60

72 : 360

1 : 5

400

I got a pay rise of 5%.

My old pay was $900 per week.

What is my new weekly pay (with 5% increase)?


10% = $90

5% = $45

100% + 5% = $900 + $45 

= $945

500

What percentage is 0.125

12.5%

500

120% of 50

60

500

60 out of 80 = ?%

75%

500

$400 is shared between Seth, Ada and Reis in the ratio 1 : 3 : 4

How much does Ada receive?

8 parts

50 : 150 : 200

Ada receives $150

500

Which test result is better? 

(change to percentage to find out)

Test A    45 out of 50

Test B    72 out of 80

Neither - same percentage.

45/50*100 = 80%

72/80*100 = 80%