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# Fraction Number Lines_ by hedongchenchen

VIEWS: 2 PAGES: 50

• pg 1
```									Locating Numbers on a Number Line
The top number in a
fraction is called the

numerator.
1
3           The bottom number in a
fraction is called the

denominator.
“Denominator” starts with a “D” so
look Down at the bottom of the fraction.

numerator
5
8   denominator
The BIG number next a

1
8
fraction is the
WHOLE NUMBER.

3

fraction
What is the top
number called?

3   The   numerator!

4    What is the bottom
number called?
The   denominator!
2   Name the denominator
in this fraction.

9          9!
1   Name the numerator
in this fraction.

5          1!
6
1
Name the
whole number.

9
1!
2   Name the numerator
in this fraction.

3          2!
2
6
Name the
whole number.

9
6!
7   Name the denominator
in this fraction.

12         12!
0                                1

1       2      3 4
Count the spaces between the WHOLE
numbers on the number line.
0                                 1

1      2         3 4
Now add ONE to that number…
4+1=   5
0                               1

1        2         3 4
4+1=    5
0                                              1

1           2        3       4        5
5           5        5       5        5
So now just starting counting by 1s, starting with 1.
Your WHOLE number will have the same number as
the numerator and denominator.
0                                        1

Count the spaces between the WHOLE
numbers on the number line.
0    1    2    3   4    5   6    7   8   9   1
9    9    9   9    9   9    9   9   9
Is your denominator 9? Let’s see!

What’s wrong with this?
9/9 should be the second whole number!
We forgot to add 1 to our count!
0    1   2    3 4     5    6 7     8    9    10
10   10   10 10   10   10 10   10   10   10

That’s better! 

0                   1

What is the DENOMINATOR
0                                   1

1            2
Count the spaces between the WHOLE
numbers on the number line and add 1!
0                            1

1         2
So the denominator is 2 + 1 = 3!
0                                    1

3
3
1           2
3           3
Let’s write in the correct fractions now…
0                   1

What is the DENOMINATOR
0 1 2 3 4 5 6 7 8 9   10 11 12 13 14 15   1

First count the spaces in
0 1 2 3 4 5 6 7 8 9   10 11 12 13 14 15   1

So 15 + 1 = 16!
0                             1

Now fill in the correct
fractions!
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0    16 16 16 16 16 16 16 16 16 16 16 16 16 16 16
1
0                                                  16
16                                                  16

Nice work!                             
0                   1

What is the DENOMINATOR
0     1      2       3           1

Count up the spaces in between the
whole numbers…

Now add 1!         So 3 + 1 = 4!
0       1     2     3        1
0
4
4     4     4        4
4

Fill in the fractions!
2                         3

It doesn’t matter if the WHOLE
NUMBERS are 0 and 1….
They might be 2 & 3!
2                              3

1          2
You still count the spaces and add 1…
2                             3

1          2
(2 + 1 = 3 is the denominator!)
2     2
1
3     2   2
3
3

But you add the WHOLE NUMBER in
front of the fractions!
7                 8

The whole numbers might
be 7 & 8!
7                         8

1      2      3
You still count the spaces
3 + 1 = 4 is the denominator!
1      2       3
7      4      4       4    8

Is this correct?
What did I forget?
1       2       3
7     7   4   7   4   7   4   8

I forget the WHOLE NUMBERS!
Let’s fix it together!
1     2   3     4   5     6    7

First find the denominator of your fractions.
Count the spaces and add 1!
7 + 1 = 8 is your denominator!
1   2   3   4   5   6   7
8   8   8   8   8   8   8
0                                 8
8                                 8

1       2   3   4       5   6       7
8       8   8   8       8   8       8
0                                           8
5       7       1           3       8
8
8       8       8           8

Next, correctly fill in the answers
for the fractions at which
A, B, C, and D are marked.
1       2       3       4

First find the denominator of your fractions.
Count the spaces and add 1!
4 + 1 = 5 is your denominator!
1     2     3     4
5     5     5     5
0                                 5
5                                 5

1       2   3   4
5       5   5   5
0                                5
5     2       4       3   1      5
5       5       5   5

Finally, correctly fill in the
answers for the fractions at which
A, B, C, and D are marked.
1   2   3   4   5   6   7   8   9   10   11

First find the denominator of your fractions.
Count the spaces and add 1!
11 + 1 = 12 is your denominator!
1    2   3    4     5    6    7    8    9   10 11
12   12   12   12   12   12   12   12   12   12 12
0                                                         12
12                                                         12

1    2   3    4      5    6    7    8    9        10 11
12   12   12   12    12   12   12   12   12        12 12
0         5             11         10              9           12
12        12             12         12             12           12

Finally, correctly fill in the answers
for the fractions at which
A, B, C, and D are marked.
A quiz will be handed out to you. Do