Ratios 4/27/11

Quick Write: Please share 5 things you know about fractions

1.2.3.4.5.

Ratio: Uses division to compare two numbers

Wins to losses 18 to 13 a to b, where b is nonzero

wins losses

18 13

a b

wins:losses 18:13 a:b; where b is nonzero

Three ways to write a ratio

Spring Training

Team Wins Losses

Philadelphia Phillies

19 6

New York Yankees

6 21

Boston Red Sox

15 9

Use the table above to make comparisons about games playeda. Phillies wins to losses b. Yankess wins to total

games

Name Rock Pop Hip-hop

Luis 9 24 16

Ana 28 70 40

According to the table, who has the greater ration of rock CD’s to pop CD’s, Luis or Ana?

Step 1 → Write the ratio as fractions.

Step 2 → Write the fraction as decimals

Write the ratio of the first measurement to the second measurement. Write using same unit.

1. 3 lb , 24 oz 2. 4 ft, 54 in 3. 2 min, 115 sec