Fractions Packet - Examples And Worksheets With Answers Page 5
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42Exercise 2
(answers on page 39)
Write the complements to answer the following questions:
1.
A cake had 16 slices. 5 were eaten. What fraction of the cake was
left?
2.
There are 20 people in our class. 11 are women. What part of the class
are men?
3.
It is 25 miles to grandma’s house. We have driven 11 miles already.
What fraction of the way do we have left to go?
4.
There are 36 cookies in the jar. 10 are Oreos. What fraction of the
cookies are not Oreos?
Reducing Fractions
If I had 20 dollars and spent 10 dollars on a CD, it’s easy to see I’ve spent half
10
1
of my money. It must be that
. Whenever the number of the part (top)
20
2
and the number of the whole (bottom) have the same relationship between
them that a pair of smaller numbers have, you should always give the smaller
1
5
pair answer. 2 is half of 4. 5 is half of 10.
is the reduced form of
and
2
10
2
10
and
and many other fractions.
4
20
A fraction should be reduced any time both the top and bottom number can be
divided by the same smaller number. This way you can be sure the fraction is as
simple as it can be.
5
both 5 and 10 can be divided by 5
10
5
5
5
1
10
10
5
2
1
5
describes the same number relationship that
did, but with smaller
2
10
1
5
numbers.
is the reduced form of
.
2
10
6
6
6
2
3
both 6 and 8 can be divided by 2.
8
8
8
2
4
Fractions Packet
Created by MLC @ 2009 page 5 of 42
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