1. PERCENT
DECIMALS
FRACTIONS

2. Sometimes we need to represent the same amount in different ways.
For example, there are a number of different ways we could represent one dollar.

3. One dollar could be:
1 loonie
4 quarters
10 dimes

4. The ability to represent the same amount in different ways is important for mathematical operations as well.
Converting between the three fundamental forms (decimal, percent, fraction) is where we will begin our study.

5. Suppose you scored 15 out of 20 on a quiz.
= 0.75
This is the fraction form of your result
To convert to percent, multiply the decimal by 100
0.75 X 100 = 75%
To convert to decimal, perform the division 15 / 20. You may use a calculator for these if you need to.

6. A few more examples: 18 20 = 0.9 = 90% (divided) 13 16 = 0.8125 =
(Multiplied by 100%) 13 16 =
0.8125 =
81.25%

7. Convert the following (try them first, then click to see the answer)
Fraction
Decimal
Percent ? 75
100 ?
0.75
75% 3 4 =
Fully reduce all fractions!!!

8. ? ? ? Convert the following Fraction Decimal Percent 3 15 0.2 20% 1 5=

9. ? ? Convert the following Fraction Decimal Percent 45 100 0.45 45% 920 =

10. Convert the following
Fraction
Decimal
Percent ? ? 3 7
0.43
43%

11. ? ? ? Convert the following Fraction Decimal Percent 122 100 1.22 122%61 50 ? =

12. See Sheet

13. Remember: Fractions represent part of a whole.
A Fraction is a division statement

14. 5 1 7 . 3 7 9 For Decimals: ones tens tenths hundreds hundedths
ones
tens
tenths
hundreds
hundedths
thousandths

15. Percent (out of 100)
33% = 33 / 100
79% = 79 / 100
Putting it all together….