4.3 Multiplying Fractions

4.3 (Part 1)
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1.
Multiplying Fractions
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$
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When multiplying fractions, ________.
A)
change to division
B)
multiply numerator with numerator and multiply denominator with denominator
C)
multiply the numerators but add the denominators
D)
always subtract
Multiply each of the following:
2.
$ (
†
% #
3.
•
' "&
†
#& %
Multiply each of the following:
4.
$ "'
†
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5.
*
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6.
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# ( ")
7.
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$ "# #&
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8.
$B "#C #
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%C *B
9.
Υ
$B
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4.3 (Part 2)
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1.
Dividing Fractions
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‚
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#
$
%
&
'
(
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*
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")
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##
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*
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")
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#(
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%
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)
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"'
#!
#%
#)
$#
$'
%!
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&
&
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#!
#&
$!
$&
%!
%&
&!
&&
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When dividing fractions, ________.
A)
change to multiplication
B)
find a common denominator
C)
subtract numerators and subtract denominators
D)
always add
Divide each of the following:
2.
$ (
ƒ
% #
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3.
#
ƒ)
*
Divide each of the following:
)
"&
4.
%ƒ
6.
$B 'B
ƒ
#C
%C
5.
$' ")
ƒ
%* #"
7.
"%B
%C
ƒ
#!C
"&B
Applications of Fractions
8.
The radius of a circle is one-half of its diameter
$
as shown below. If the diameter of a circle is
%
of an inch, what is the circle's radius?
9.
A special on a cruise to Puerto Rico is
%
being advertised as being of the regular
&
price. If the regular price is $)(&, what is
the sale price?
4.4
Adding and Subtracting Fractions with Like Denominators
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1.
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When adding or subtracting, all fractions ________.
A)
must be proper
B)
must have different denominators
C)
must have common denominators
D)
should be multiples of &
Perform the indicated operations and simplify:
" '
€
% %
3.
'
$
€
"# "#
5.
2.
Add:
4.
•
Subtract:
& $
•
% %
•"!
•)
€Œ
•
$$
$$
Perform the indicated operations and simplify:
6.
#B $B
€
(
(
8.
•
10.
7.
%C
C
•
&B &B
)B $B #B
€
€
#%
#%
#%
9.
•
)+ *
•
&
&
11.
"(
"%
• Œ• •
#!
#!
Find the perimeter of the triangle.
Write the fraction as an equivalent fraction with the given denominator.
12.
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'
14.
%C
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$
16.
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$'
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13.
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15.
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17.
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