Transcript Notes

Converting Fractions,
Decimals and Percentages
ORDERING
I can convert a rational
number between its fraction,
decimal and percentage forms.
I can order rational numbers
in their decimal form.
What is a Rational Number?
Any number that can be written as a fraction.
Examples: -2, 0, 48, .25, 1/3,
Non- Examples: π
Converting our fractions and
percentages to their decimal form
makes it easier to order rational
numbers.
Lets convert these percentages to their
decimal and fraction forms:
25%
70%
Convert these fractions to their decimal
and percentage forms
14/25
8/5
Convert these decimals to their fraction
and percentage forms
.39
2.15
How do we know which number is
greater?
Think about MONEY!!!!
25% = .25
7/20 = .35
.25
.35
Which number is greater?
.19 or 18%?
Which number is greater?
3/8 or 45%
Which number is greater?
38% or 20/50?
Now we can put multiple numbers
in order from least to greatest.
(hint: Just convert to decimals and line them
up)
25%, .17, 1, 4/8,
Lets try another…
Put the numbers in order from
least to greatest.
2, 0, 5/8, -4, 75%
Now you try…
Put the numbers in order from
least to greatest.
50%, 1/9, 0, -2, 5/2
Put the numbers in order from
least to greatest.
11/2, .73, .4, 4, 52%
A man decides to write his will. He know
he has $37,450 to leave to his three
daughters. He is going to leave 30% of
the money to his daughter Cathy, 72/200
of the money to his daughter Connie and
.34 of the money to his daughter Lucy.
Who is getting the biggest share of the
inheritance?
Ticket Out
Which set of numbers is in order from
least to greatest?
A.
B.
C.
D.
0,
0,
0,
0,
.75, .7, .23,
.7, .75, .23,
2.3, .23, .7,
.23, .7, .75,
2.3
2.3
.75
2.3