# Math

Determine which ratio forms a proportion with 9/5 by finding a common multiplier?

54/30
45/50
45/40
90/20

Determine which ratio forms a proportion with 12/7 by using cross products?

60/35
24/10
36/14
18/14

Which ratio can from a proportion

20/25,14/21
10/23,18/7
5/45,4/36
5/4,4/5

1. 8
1. 9/5
The numerator is almost double the denominator. That eliminates three of the answers.

54/30 54/9 = 6; 6 * 5 = 30. Yep; this is right.

45/50
45/40
90/20

You can use the same reasoning on the other two problems.

posted by Ms. Sue
2. det

posted by Hi
3. Determine which ratio a proportion with 14/35 by writing the ratio in simplest form.
A 2/7
B 4/5
C 3/8
D 2/5

posted by !

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