Ratios and Proportions

Simplifying Ratios

100

Simplify 6:9

2:3

200

Simplify:  10:50

1:5

300

Simplify 100:20

4:1

400

Simplify:  999: 111

9:1

500

Simplify  16: 6

8:3

Solving Propotions

100

4/x = 2/1

2

200

24/39=x/13

x = 8

300

15/x = 150/250

x = 25

400

6/120=42/x

x = 840

500

72/3 = 36/x

x = 1.5 or x = 1 1/2

Proportion Word Problems

100

1 horse has 4 legs.  How many legs do 12 horses have?

48

200

7 equal sized bottles contain 91 oz. of water.  How much in each bottle?

13 oz.

300

Three pounds of cherries cost $9.45.  How much are 4 pounds of cherries?

$12.60

400

Sebastian can drive 82 miles in 2 hours.  How far can he go in five hours?

205miles

500

Isabella can read 15 pages in 24 minutes.  How long does it take her to read 75 pages?

120 minutes or two hours

More Proportion Word Problems

100

7 spiders have 56 legs.  How many legs does one spider have?

8

200

5 pounds of cheese cost $30.  How much cheese can you get for $12?

2 pounds

300

Sage can catch 7 fish in 2 hours.  How many fish can he catch in 6 hours?

21

400

It takes Lenny 50 minutes to jog 4 miles.  How far can he go in 75 minutes?

6 miles

500

It takes Erin 24 seconds to spin around the pole 16 times.  How long ill it take to spin 64 times?

96 seconds

Even More Proportions

100

12/3 = x/6

24

200

9/10 = 45/x

50

300

16/x = 4/6

24

400

100/300 = 50/x

150

500

55555/88888 = x/16

10