The Fractions Pack
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Transcript of The Fractions Pack
Hi... I am Fractionstein.
Did you know that fractionsare not as scary as you might think?
Learn along with meand you will be an expert
at fractions in no time at all!
What are fractions?
Fractions are parts of whole things.We use fractions every day!
The time isquarter past twelve.
Somebody has already eatenthree-quarters of this pizza!
Zack played really well in the first half of the match!
Mia is2 ½
years old.
www.teachingpacks.co.ukImages: © ThinkStock
©
We write fractionsusing a numerator
and a denominator.34
The numerator tells us how many parts we have.
The denominator tells us how many parts something was (or is) divided into.
34 5
8There is one piece
of cake left.There are five green buttons.
There are eight buttons altogether.
16 The cake was cut
into six pieces.
There are three pieces left.
There werefour pieces.
www.teachingpacks.co.ukImages: © ThinkStock
©
There are lots of different types of fractions. Here are some of them...
What fractionof my flag is
coloured pink?
Halves
Quarters
Eighths
Thirds
Fifths
Tenthswww.teachingpacks.co.uk
©
12
13
14
15
18
110
What do you notice about the size of the
pieces in each
fraction?
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Did you know that we can
add and subtract
fractions?
If the denominators are the same, adding
and subtracting fractions is easy.
15
35
45
78
38
48
+ =
- =
If the denominators are different, we have to change the fractions
so that they have a common denominator.
?+ =45
34
3120+ =16
201520
?- =78
13
1324- =21
248
24
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Fraction Decimal Percentage1 1 100%
3/4 0.75 75%2/3 0.6 66.6%1/2 0.5 50%1/3 0.3 33.3%1/4 0.25 25%1/5 0.2 20%1/8 0.125 12.5%
1/10 0.1 10%1/100 0.01 1%
It is helpful if you can remember these fractions, decimals and percentages!
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fraction numerator denominator commondenominator
cancel simplify decimal decimal point
Fractions are parts of whole things.
This is the top number in a fraction. It tells us how many parts we have.
This is the bottom number in a fraction. It tells us how many parts something was
(or is) divided into.
Different fractions that all have the same denominator. This makes it easier to order,
add and subtract them.
Cancelling fractions is when we divide the numerator and denominator by the
same number.
Simplifying fractions means finding an equivalent
fraction where the numerator and denominator are as small as they can be.
Decimal numbers contain a decimal point. They
might also include tenths, hundredths and other
numbers smaller than one.
A decimal point separates the whole numbers from
the numbers that are smaller than one.
34
17
35
57
18
38
78
10100
110=
÷ 10
÷ 10
927
13=
27.6170.5 3.04 874.024
www.teachingpacks.co.uk©Sheet 1
1.
31218=
2.
8540=
3.
94045=
4.
41824=
5.
236=
6.
31030=
7.
51050=
8.
21020=
9.
104550=
10.
10990=
11.
81248=
12. 49 18=
13. 34 20=
14.
3812=
15. 12 14=
16.
9763=
17. 58 56=
18. 35 40=
Can you work out these equivalent fractions?
www.teachingpacks.co.uk©Sheet 1 Answers
1. 23
1218=
2. 18
540=
3. 89
4045=
4. 34
1824=
5. 12
36=
6. 13
1030=
7. 15
1050=
8. 12
1020=
9. 910
4550=
10. 110
990=
11. 28
1248=
12. 49
818=
13. 34
1520=
14. 23
812=
15. 12
714=
16. 19
763=
17. 58
3556=
18. 35
2440=
Fractions
1
3/4
2/3
1/2
1/3
1/4
1/5
1/8
1/10
1/100
Fractions
1
3/4
2/3
1/2
1/3
1/4
1/5
1/8
1/10
1/100
Fractions
1
3/4
2/3
1/2
1/3
1/4
1/5
1/8
1/10
1/100
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one wholeone whole
1 100%
11
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one halfone half
0.5 50%
12
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two halvestwo halves
1 100%
22
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one thirdone third
0.3 33.3%
13. .
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12
13
14
15
16
18
110
24
13
26
14
28
15
210
16
212
18
Is this the answer?
5
The Next Question...
What is one half as a decimal?
Is this the answer?
0.5
The Next Question...
What is the top number in a fraction called?
Is this the answer?
The Numerator
The Next Question...
How many tenths arethere in one fifth?
Is this the answer?
2
The Next Question...
What is 97% as a decimal?
Is this the answer?
0.97
The Next Question...
How many quarters are in one whole?
Is this the answer?
4
The Next Question...
How many tenths are in three fifths?
Is this the answer?
6
The Next Question...
What is half of a fifth?
Is this the answer?
One tenth
The Next Question...
What is 0.05 as a percentage?
www.teachingpacks.co.uk©
112
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15
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15
16171819110111112
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18
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18
18
18
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19
19
19
19
19
19
110
110
110
110
110
110
110
110
110
111
111
111
111
111
111
111
111
111
111
112
112
112
112
112
112
112
112
112
112
112
www.teachingpacks.co.uk©
www.teachingpacks.co.uk
Thank you for lookingat this preview of our
Fractions Pack.
You can download thefull teaching resource pack from
http://teachr.co/fractionspack
Helen and Mark