Fraction Number Lines. Locating Numbers on a Number Line with our BBES 3 rd Graders. Let’s identify the parts of a fraction. The top number in a fraction is called the numerator. 1 3. The bottom number in a fraction is called the denominator. - PowerPoint PPT Presentation
Transcript of Fraction Number Lines
Locating Numbers on a Number Line with our BBES 3rd Graders
The top number in a fraction is called the
numerator.13 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
58 denominator
The BIG number next a fraction is the
WHOLE NUMBER. 138
fraction
What is the top number called?
34
The numerator!
What is the bottom number
called? The
denominator!
Name the denominator
in this fraction.
29 9!
Name the numeratorin this fraction.1
5 1!
Name the whole number. 6
91!
1
Name the numeratorin this fraction.2
3 2!
Name the whole number. 2
96!
6
Name the denominator
in this fraction.
712 12!
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
That is your denominator!
4 + 1 = 5
0 1
1 2 3 4
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
15
25
35
45
55
Count the spaces between the WHOLE numbers on the number line.
What is your denominator?
0 1
Is your denominator 9? Let’s see!
0 1
1
9
2
9
3
9
4
9
5
9
6
9
7
9
8
9
9
9
What’s wrong with this?9/9 should be the second whole number!
We forgot to add 1 to our count!
That’s better!
0 10
10
110
210
310
410
510
610
710
810
910
What is the DENOMINATOR of your fraction?
0 1
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
1 2
Let’s write in the correct fractions now…
0 1
13
23
33
What is the DENOMINATOR of your fraction?
0 1
First count the spaces in between, and then add 1!