Ex. 4/5

4/5 = 0.8

0.8 x 100 = 80%

80 = 80%

100% means everything! 100/100 or 37/37

For 100%, say your fraction was 100/100. To find 100% you divide 100 by 1. Since you're only dividing 100 by 1 it's still going to be 100. It's still going to be the same. This works with all fractions that have the same numerator and denominator.

Ex:100% of 60=?

60/1=60

60=60

50% means half, 1/2 or 50/100.

To find 50% you must divide your number by 2. That gives you half of your number which is 50%

Ex:50% of 60=?

60/2=30

30=30

25% means 1/4, 25/100 or divided by 4.

To find 25% you must divide your number by 4. The number you get is 1/4 of the number you started with.

Ex:25% of 60=?

60/4=15

15-15

10% means 1/10, 10/100 or divided by 10.

To find 10% you must divide your number by 10. This gives you a number that is 1/10. This number is 10% of the number you started with.

Ex:10% of 60=?

60/10=6

6=6

1% means 1/100 or divided by 100.

To find 1% you must divide your number by 100. This give you a number that's 1/100 or 1%.

Ex:1% of 60=?

60/100=0.6

0.6=0.6

a) 180%

b) 0.6%

c) 12 3/4%

Converting Fractions to Decimals and Percents: 88/50

Numerator divide by the Denominator

88 divide by 50 = 1.76

1.76 x 100 = 176%

Converting Decimals to Percents and Fractions: 0.0064

0.0064 x 100 = 0.64 or 0.64%

64/10000 divide by 16/16 = 4/625

Converting Percents to Decimals and Fractions: 750%

750 divide 100 = 7.5

750/100 = 7.5 or 7 1/2

Show How You Know:

20% of 60: 20÷100= 0.2

0.2 x 60=12

20% of 6 = 12

0.1% of 40:0.1÷100=0.001

0.001 x 40=0.04

0.1% of 40 is 0.4

250% of 400:250÷100=2.52.5 x 400=1000

250% of 400 is 1000

__Question #3 on pg 148:__

a) 15 ÷ 100 = 0.15 b) 10 ÷ 100 = 0.1 c) 25 ÷ 100 = 0.25

0.15 x 200 = 30 0.1 x 230 = 23 0.25 x 200 = 50

30 + 200 = 230 23 + 230 = 253 50 + 200 = 250

Kyle is incorrect.

Discount - what you save

Sale Price - what you pay

Total Price - what you pay altogether with tax.

( Discount - Original Price = Sale Price) (Sale Price + Tax = Total Price)

Show How You Know pg 148

Which is a better buy? What is the final price?

Plate Collection $ 68.00

Store A: 50% off one day only

68 ÷ 2 = $34

Store B: 25% off one day followed by 25% off the reduced price the second day.

25 ÷ 100 = 0.25 $51 x 0.25 = $12.75

0.25 x 68 = $17 $51 - $ 12.75 = $38.25

$68 - $17 = $51

Store A has a better deal because it is less than Store B after the discount.

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