1. Rational Numbers and Decimals
5.5

2. Natural Numbers
Counting Numbers
1,2,3,4,5,6,7…

3. Whole Numbers
0+ Natural Numbers
0,1,2,3,4,5,6…

4. Integers
Negative Numbers + Whole Numbers
…-3, -2,-1, 0, 1, 2, 3…

5. Rational Numbers
Integers + every number that can be written as a fraction
-2, -3/2, -1, -0.4,0,1,1.25, 2….

6. Identify sets to which numbers belong-5
Integers, rational number
2/7
Rational number 4
Natural , whole , integer, rational number
Whole, integer, rational number
8.5

7. Fraction to Decimal Divide the denominator into numerator Two types:
Terminating : ends
Repeating: never ends but keeps repeating

8. Turn into a decimal

9. Turn into a decimal

10. Decimal to Fraction 1 decimal place = put over 10
2 decimal places = put over 100
3 decimal places = put over 1,000
4 decimal places = put over 10,000
and so on…
Then reduce!!!

11. Turn to a fraction 0.6

12. Turn to a fraction 0.45

13. To write a repeating decimal as a fraction
Set n= decimal
Multiply both sides of the equation by either (10,100,1,000, 10,000, …) depending on how many numbers repeat
Subtract step 2 from step 1
Solve for n

14. Turn into a fraction

15. Turn into a Fraction

16. Turn into a Fraction

17. Homework
Page 242 (26-31 all, even, all)