3. Rational Numbers
Comes from the word “ratio”
Any number that can be
expressed as the ratio of two
integers is a fraction
A fraction is a rational number
5. Ex 1: Write as the ratio of two
integers
3
1
−
3−
6. Ex 2: Write as a ratio of two
integers:
7
etcor
2
14
1
7
7. Any terminating or repeating decimal
can be written as a fraction
It there is
1 decimal place …. put the number over
10
2 decimal places … put over 100
3 decimal places … put over 1000
****Remember to REDUCE*******
8. Ex 3: Write as the ratio of two
integers
92
10
=
9.2
9. Ex 4: Write as a ratio of two
integers:
0.7
10
7
10. Ex 5: Write as a ratio of two
integers:
4.5
2
9
10
45
or
11. Ex 6: Write the following number
as a ratio of two integers:
-9.23
923
100
−
12. Write a mixed number as a ratio
of two integers by…
Turning it into an improper fraction
13. Ex 7: Write 7 ½ as a ratio of two
integers
15
2
15. Graphing Fractions on the # line
Turn improper fractions to mix numbers
Find the 2 whole numbers the fraction is
in between and put a dot between those
two whole numbers
16. Ex 8: Graph on the Number Line
0 42-6 -4 -2 6
2
5
17. Ex 9: Graph on the Number Line
0 42-6 -4 -2 6
5.4−
