Ratio Basics
What is the ratio of cats to dogs if there are 3 cats and 5 dogs?
3:5
Is 2:3 equivalent to 4:6? Show how you know.
Yes, The ratio 2:3 is equivalent to 4:6
A class has 12 boys and 18 girls. What is the ratio of boys to girls?
12:18
What is the formula for the area of a triangle?
1/2 x base x height
What’s the missing number in this equivalent ratio: 7:9 = ?:27
Also sing the theme song to fresh prince of Bel air
21
Write the ratio 4:7 as a fraction.
4/7
Which of the following ratios is equivalent to 3:4?
A. 15:20
B. 6:8
C. 9:12
D. 12:15
A, B, C
There are 15 red marbles and 5 blue marbles. What is the ratio of blue to total marbles?
5:20
Find the area of a triangle with a base of 10 cm, and a height of 5 cm.
25 cm
A bag has a ratio of 2 green to 3 yellow candies. If there are 25 candies total, how many are green?
10
If the ratio of apples to oranges is 2:3, how many apples are there if there are 9 oranges?
6 Apples
Use multiplication to find two ratios equivalent to 5:8.
25:40
40:64
If 3 out of every 5 students bring lunch from home, how many out of 20 students bring lunch?
12:20
A triangle has an area of 36 cm and a base of 9 cm What is its height?
8 cm
Create a ratio table for 4:5 up to 40:50.
16:20
20:25
24:30
28:35
32:40
40:50
True or False: The ratio 3:4 is the same as 4:3.
False
If 4:5 = x:20, what is x?
16
A car travels 60 miles in 2 hours. What is the ratio of miles to hours?
30:1
A rectangular field is 125 m long and 342 m wide. What is its area?
42, 750m
A class has a ratio of 3 left-handed to 7 right-handed students. If there are 40 students, how many are left-handed?
12 left handed
Write three different ways to represent the ratio of 6 pencils to 2 erasers.
6:2
6 to 2
6/2
A recipe uses 2 cups of flour for every 3 cups of sugar. How much flour is needed for 12 cups of sugar?
8 cups of flour are needed
A team wins 4 games for every 1 loss. If they played 25 games, how many did they win?
20 games won
A classroom floor measures 214 cm by 308 cm. What is the area of the floor?
65,912 cm
A puzzle has 2 red pieces for every 5 blue pieces. If there are 21 blue pieces, how many red pieces are there?
8.4 red pieces