Multiplication/Division
Adding/Subtracting Fractions
Reducing Fractions
& Mixed Numbers
Ratios
Proportions
100
7x8=
56
100
7/10 + 2/10 =
9/10
100
6/8
3/4
100
Write this ratio in two other ways. 4:5
4/5 and 4 to 5
100
What is a proportion?
A statement that shows two ratios are equivalent.
200
24/12=
2
200
12/17 - 8/17=
4/17
200
24/36
12/13
200
You have 14 red Lego's, 6 blue Lego's, and 2 green Lego's. What is the ratio of green to red Lego's?
2:14, 2 to 14, or 2/14
200
Write one proportion using these ratios: 3/5, 6/10, 12/20
3/5=6/10, 3/5=12/20, 6/10=12/20
300
___ x ___= 36
6 x 6, 18 x 2, 9 x 4, or 12 x 3
300
3/8 + 14/32=
26/32= 13/16
300
11/10
1 1/10
300
Find an equivalent ratio to 5:10.
1/2, 10/20, 15/30, 20/40.... (answers may vary)
300
Fill out this ratio table then write 2 proportions. |6| | | |7| | |
Example: |6| 12 | 18 | |7| 14 | 21 | 6/7=12/14, 12/14=18/21
400
___ / ___= 9
9/1, 18/2, 27/3, 36/4, 45/5, 54/6, 63/7, 72/8, 81/9, 90/10
400
8/14 - 4/7=
0
400
7/5
1 2/5
400
Fill out this table with equivalent ratios. |3| | | |8| | |
|3| 6 | 9 | |8| 16 | 24 | (example of possible answer)
400
Fill out this ratio table then write 3 proportions. |3|6| | |4| |12|
What is |3|6|12| |4|8|12| 3/4=6/8, 3/4=12/12, 6/8=12/12
500
1,000 x 10=
10,000
500
The first step when adding or subtracting fractions is to find the _______ ___________.
Common Denominator
500
10/6
1 4/6 = 1 2/3
500
Fill out this table with equivalent ratios |6|12 | |60| |9| |36| |
|6|12 |18|60| |9|18|36|90|
500
You can run 2 miles in 18 minutes and 3 miles in 27 minutes. Using this information write 2 ratios and a proportion.
2/18, 3/27 2/18=3/27
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