Download 14-2

Name
Reteaching
14-2
Fractions, Decimals, and
Percents
Write 36% as a fraction in simplest form Write _34 as a decimal and as a percent.
and as a decimal.
You can use a proportion or divide to
36
___
help you.
36% !
! 0.36
100
Use division:
0.75
4!3
".00
"
28
20
20
0
Use a proportion:
Simplify the fraction:
3 ! ___
n
_
4
100
36 ÷ 4 ! __
36 ! ______
9
___
100
100 ÷ 4
25
9
So, 36% ! __
! 0.36.
4n ! 300
25
Write 0.47 as a fraction in simplest form
and as a percent.
n ! 75
75 ! 0.75 ! 75%.
So, __34 ! ___
100
47 ! 47%
0.47 ! ___
100
Write each number in two other ways. Write fractions in simplest form.
2
1. ___
100
;
71
2. ___
100
;
9
3. __
10
;
4. 17%
;
5. 48%
;
6. 60%
;
7. 0.04
;
8. 0.22
;
9. Writing to Explain Jamal said that he could write a percent as
a decimal by moving the decimal point two places to the left and
deleting the percent sign. Is he correct? How do you know?
10. Number Sense Two stores sell their goods at
the manufacturers’ suggested retail prices, so
their prices are the same. Which store has the
greatest markdown from their original prices?
34
Topic 14
GOODS 2 GO
1 off
4
original prices!
BUY AND BYE
30% off
original prices!
© Pearson Education, Inc. 6
Reteaching 14-2
Fractions, decimals, and percents all name parts of a whole.
Percent means per hundred, so 15% means 15 parts per hundred.
The grid to the right has 72 out of 100 squares shaded. The shaded part
18 in simplest form), by a decimal,
72 (__
can be represented with a fraction, ___
100 25
0.72, and by a percent, 72%.
Name
Reteaching
14-2
Fractions, Decimals, and
Percents
Write 36% as a fraction in simplest form Write _34 as a decimal and as a percent.
and as a decimal.
You can use a proportion or divide to
36
___
help you.
36% ! 100 ! 0.36
Use division:
0.75
4!3
".00
"
28
20
20
0
Use a proportion:
Simplify the fraction:
3 ! ___
n
_
4
100
36 ÷ 4 ! __
36 ! ______
9
___
100
100 ÷ 4
25
9
So, 36% ! __
! 0.36.
4n ! 300
25
Write 0.47 as a fraction in simplest form
and as a percent.
n ! 75
75 ! 0.75 ! 75%.
So, __34 ! ___
100
47 ! 47%
0.47 ! ___
100
Write each number in two other ways. Write fractions in simplest form.
5. 48%
0.02
0.9
0.48
7. 0.04
__
1
2
1. ___
100
9
3. __
10
25
2%
; 90%
;
__
12
;
25
;
4%
6. 60%
0.71
0.17
0.6
8. 0.22
__
11
71
2. ___
100
4. 17%
50
;
71%
;
___
17
100
_
3
;
5
;
22%
9. Writing to Explain Jamal said that he could write a percent as
a decimal by moving the decimal point two places to the left and
deleting the percent sign. Is he correct? How do you know?
Yes, I looked at the exercises and his
conjecture worked for those numbers.
10. Number Sense Two stores sell their goods at
the manufacturers’ suggested retail prices, so
their prices are the same. Which store has the
greatest markdown from their original prices?
GOODS 2 GO
1 off
4
original prices!
Buy and Bye; _14 ! 25%, 30 > 25.
34
Topic 14
BUY AND BYE
30% off
original prices!
© Pearson Education, Inc. 6
Reteaching 14-2
Fractions, decimals, and percents all name parts of a whole.
Percent means per hundred, so 15% means 15 parts per hundred.
The grid to the right has 72 out of 100 squares shaded. The shaded part
18 in simplest form), by a decimal,
72 (__
can be represented with a fraction, ___
100 25
0.72, and by a percent, 72%.