Fractions, Decimals, Percents

Convert Fraction to Decimal

100

How do you convert a fraction to a decimal? 

Numerator ÷ Denominator 

(Divide top by bottom) 

e.g. 4/10 = 4 ÷ 10

200

48/50

.96

300

3/5

.6 or .60

400

4/10

0.4

500

3/8

.375

Convert Decimal to Percent

100

.40

40%

200

.64

64%

300

.8

80%

400

.04

4%

500

.03

3%

Convert Fraction to Percent

100

1/4 (aka a "quarter") 

25%

200

48/50

96%

300

3/5

60%

400

4/9

44.4 repeating %

500

3/8

37.5%

How would you find discount?

100

30% off $90 sneakers 

0.30 x 90 

OR 

90 x 0.30

200

30% sale off a $200 scooter

$200 x 0.30 OR 0.30 x $200 

300

10% off dog food that costs $77.99

$77.99 x 0.10 

OR

0.10 x $77.99

400

If a $20 item is discounted 50% (aka HALF!), what is the amount of discount? 

What is $10? 

$20 divided in half! 

500

Discount is _________________ from the original price of the item. 

What is subtracted? 

How would you find tax?

100

What percent is TAX in Ontario? 

13% or 0.13 

200

tax on a $1 200 item

$1 200 x 0.13

300

tax on a $8.80 item

$8.80 x 0.13

400

tax on a $14.99 item

14.99 x 0.13

500

True or false: Tax is added to the original price of an item.

What is TRUE