Ratios
A ratio is a ___________ between two or more numbers.
Relationship or Comparison
2/3 and 4/6
Yes scaling up by a factor of 2. 2x2=4 and 3x2=6
Simplify this ratio.
6:9
2:3
3/4 as a decimal
What is 0.75
Write 11 limes to 6 lemons as a ratio in 3 ways.
11:6, 11/6, 11 to 6
All ratios are actual fractions that show a part of a whole. True or False?
False: All fractions ARE Part-to-Whole ratios, but Part-to-Part ratios are not fractions.
1/6 and 2/7
Not Proportional Using a scale factor of 2, 1x2= 2 6x2= 12 (not equivalent to 7)
Simplify this ratio.
9/36
1:4
0.49 as a fraction
What is
49 / 100?
What is another word for "equivalent"?
Proportional
There are 3 pineapples and 5 bananas. What is the ratio of bananas to total fruit?
5:8
6/8 and 9/12
Yes 6/8= 3/4 9/12= 3/4
What is an equivalent ratio for this ratio?
8:12
Answers Vary
16:24
24:36
32:48
73% as a decimal
What is 0.73?
There are 34 boys and 35 girls in the 5th grade at the Swanson School for Short Stops. If 14 of the boys were wearing hats, and 23 girls were not wearing hats, what is the ratio of girls to boys that were not wearing hats?
What is 23:20?
What are unit rates?
They are rates per one unit.
5/10 and 4/8
yes 5/10 = 1/2 4/8= 1/2
What is an equivalent ratio for this ratio?
6:10
Answers Vary
12:20
18:30
24:40
75 percent as a decimal
What is 0.75?
What two operations will produce equivalent ratios?
A. Adding
B. Subtracting
C. Multiplying
D. Dividing
What is C, D Multiplying and Dividing
Write 3 equivalent ratios.
Answers will vary, must be confirmed by opposing player (if playing against someone)
9/20 and 3/10
Not proportional, 20 scales down by 2 to 10, but 9 divided by 2 is not 3.
What is an equivalent ratio for this ratio?
15:40
Answers Vary
30:80
45:120
60:160
7 out of 10 = what percent?
What is 70 per cent?