Fractions to Percents
Fractions to Percents
2/100
2%
Decimals to Percents
0.49
49%
Percents to Decimals
98%
0.98
Use the given model to form your ratio in all ways-
***** $$$
$ - ALL
3 to 8
3 : 8
3 / 8
Reduce the ratio
12 : 18
2 : 3
12/6 = 2
18/6 = 3
Fractions to Percents
18/50
36%
Decimals to Percents
0.04
4%
Percents to Decimals
8%
0.08
Use the given model to form your ratios in all ways
+ + + + + + + + P P P P
ALL - +
3 to 2
3 : 2
3 / 2
Ratios should be reduced to lowest terms
Are these ratios equivalent? How do you know?
8 : 9 = 64 : 70
No,
8 x 8 = 64
9 x 8 = 72
Fractions to Percents
9/20
45%
Decimals to Percents
0.625
62.5%
Percents to Decimals
320%
3.2
Use the given model to form your ratios in all ways
* * * * * P P P P
P - *
4 to 5
4 : 5
Are these ratios equivalent? How do you know?
6 : 5 = 24 : 20
Yes
6 x 4 = 24
5 x 4 = 20
Fractions to Percents
7/8
87.5%
Decimals to Percents
0.0087
.87%
Percents to Decimals
.024%
.00024
Use the model to identify the type of ratio
U U U U U O O
U - O
Part to Part
Identify the error
2/3 = 0.06 = 66.6%
The decimal is incorrect. (0.06)
2/3 = 0.666 = 66.6%
Fractions to Percents
3/15
20%
Decimals to Percents
0.bar3
33.bar3%
Percents to Decimals
43.5%
.435
Use the given model to identify the type of ratio
U U U P P P P P
P - ALL
Part to Whole ratio
Why can't you write a part to part ratio with a fraction?
Fractions are only part to whole.