Fractions, Decimals, Percents
How do you change a fraction to a decimal?
Divide the numerator by the denominator.
-32 + 4
-28
-8 - 5
-13
-3.18 + 8.02
4.84
-8.5 - (-9.7)
1.2
How do you change a decimal to a percent>
Move the decimal two places to the right and add percent sign.
23 + -18
5
23 - (-9)
32
- 3/4 + 5/8
-1/8
7 3/4 - 4 1/4
3 1/2
How do you change a percent to a decimal?
Move the decimal two places to the left and drop the percent sign.
75 + -50
25
-4 - (-6)
2
-12.04 + (-3.6)
- 15.64
12.7 - (-5.6)
-17.1
What is 2/5 as a percent?
40%
-41 + 22
-19
-46 - 32
78
-4.7 + (-15 13/20)
20.35 or 20 7/20
-16 5/8 - (-13 3/8)
-3 1/4
What is 250% as a fraction?
250/100 or 2 1/2
-25 + 13 + -4
-16
164 - (-24)
188
-12 + 4 3/5
-8 3/5
21 5/6 - (-7 2/3)
-29 1/2