1. Final Review
UMI July 16, 2015
10%
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2. Ratios and Proportion
The ratio of the number of girls to the number of
Boys is 5:3.
What fraction of the students are girls?
If there are 150 girls, how many students
are there altogether?

3. Ratios and Proportion Solve: 𝐺 𝐵 = 5 3 , so 𝐺 𝐵+𝐺 = 5 8
Answer: of the students are girls
150 𝑇𝑜𝑡𝑎𝑙 = 5 8 , so 𝑇𝑜𝑡𝑎𝑙=240
Answer: There are 240 students altogether.

4. Ratios and Proportion Practice:
Pat the Painter mixed 3 pints of yellow paint with 4 pints of green paint to make a nifty new color. He used 27 pints of yellow paint.
How many pints of green paint will he need?
Set up a proportion to complete the problem.

5. Ratios and Proportion Solve: Given 𝒀𝒆𝒍𝒍𝒐𝒘 𝑮𝒓𝒆𝒆𝒏 = 𝟑 𝟒
Set up proportion
𝟑 𝟒 = 𝟐𝟕 𝒙
𝒙=𝟑𝟔 𝑷𝒊𝒏𝒕𝒔
Answer: He will need 36 pints of green paint .

6. Fractions
Practice
1 2 ÷ 1 6
Solve:
1 2 ÷ 1 6 = 1 2 × 6 1 =3

7. Fractions
Practice
1 4 ÷3
Solve:
1 4 ÷3= 1 4 ÷ 3 1 = 1 4 × 1 3 = 1 12

8. Fractions Practice 1 5 + 1 4 − 3 10 Solve:
− 3 10 = − 6 20 =
= 4+5−6 20 = 3 20

9. Fractions Practice 2 3 + 5 7 × 7 9 Solve: 2 3 + 5 7 × 7 9 = 2 3 + 5 9
= = 11 9 =1 2 9

10. Fractions Mrs. Johnson’s class had 2 3 5 pizzas left after the
lunch. Mr. Cain’s class had pizzas left after
lunch. How many pizzas are left altogether?

11. Fractions
Solve:
= = = =3 9 10 Or
= = =3 9 10

12. Fractions You have 3 4 of a pizza and you want to share it
equally between 5 people. How much of the pizza
does each person get?
Solve:
3 4 ÷5= 3 4 ÷ 5 1 = 3 4 × 1 5 = 3 20
Answer: each person gets of the pizza.

13. Thank you