converting rational numbers.notebook
TRANSCRIPT
Converting Rational Numbers.notebook
1
October 17, 2018
Sep 218:22 AM
WarmUp 9/21/16
Oct 73:32 PM
Warm Up
Sep 218:23 AM
ConvertingDecimalsFractionand
Percents
Sep 219:05 AM
Rational Numbers
A rational number is any number that can be written as a fraction , where a and b are integers, and b cannot equal zero.
ab
*Remember: We cannot have zero in the denominator because you can't divide a number by zero!
Sep 219:08 AM
Simplify:
1. 515
13
=
2. 2125 Simplified=
3. 2432
34=
Sep 219:12 AM
Converting Rational Numbers.notebook
2
October 17, 2018
Sep 219:18 AM
Writing Decimals as Fractions
0.5The 5 is in the tenths place so we put 5 over 10
510
12
*Remember: ALWAYS SIMPLIFY!!
Sep 219:24 AM
What about these: (Show me your steps!)
2.37 2 37100
0.652 6521000
163250
0.48 48100
1225
Sep 219:38 AM
Writing Fractions as Decimals
*Divide the numerator by the denominator
54 54
* Remember: The numerator goes inside the box!
1)
2) 16 16
Sep 219:42 AM
Try these!
1) 815
2) 145
3) 920
Sep 219:48 AM
Converting to Percents
*Think of the % symbol as meaning out of 100
How would I turn into a percent?25
1) Divide to get a decimal.
2) Convert that decimal to a percent by multiplying by 100 (or moving the decimal place 2 times to the right)
25
0.40 40%
Sep 219:55 AM
How would I go from a percent to a decimal? What did I do to convert to a percent? Would I do the same thing?
75% 0.75.
* To convert a percent to decimal, you will now divide by 100 (or move the decimal place 2 places to the left).
Then if you want to convert your decimal to a fraction, follow the same steps we did before.
Converting Rational Numbers.notebook
3
October 17, 2018
Sep 219:59 AM
Try converting these!
1) 32% as a fraction
2) as a percent78
3) 82.6% as a decimal
825
87.5%
0.826
4) 1.3 as a percent 130%
Sep 2110:02 AM
Practice
Google Classroom
Converting Worksheet