mobilelegendspptbykatotoberto-230902235349-6f38f0a4.pptx

This is a ppt for ratio and proportion

1. MODULE LEGENDS BANG BANG

2. RATIO AND PROPORTION

3. OBJECTIVES: •Define And illustrate Ratio and proportion.

4. TOPIC DIASS Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 What is ratio and proportion?

5. Ratio •Ratio is the comparison between two numbers or quantities. The Ratio of triangles to square •Ratio can be expressed in four ways and can be written as: 2:3 (colon form) 2÷3 (division form) 2 to 3 ( phrase form) ⅔ (fraction form) Read as : 2 is to 3

6. Example: Express the following ratios in simplest form. 1. 1 hour to 40 minutes 60/40 ÷20 = 3/2 or 3:2 2. 2 weeks to 4 days. 14/4 ÷ 2 = 7/2 or 7:2 3. Eight out of 30 passengers are tourist. Find the ratio of the tourist to the other passengers. 30 - 8 = 22 ( other passengers ) 8 / 22 / (2/2) = 4/11 or 4:11

7. 5. In a certain room, there are 28 women and 21 men. What is the ratio of men to women? 21/28 / (7/7) = ¾ or 3:4 b. What is the ratio of women to the total number people? 28/49 / (7/7) = 4/7 or 4:7

8. Proportion • a proportion is a equation that shows two ratios are equal. •it can be written as a:b=c:d or a/b=c/d where b≠0,d≠0 2:3 4:6 = “The product of the extremes is equal to the product of the mean, ad= bc