1. Ratios

2. 2. Simplify each fraction: 1. List the Factors of the Number
Warm-up 1
Practice multiplication facts at
Now use this site to answer question #1:
2. Simplify each fraction: 1.
List the Factors of the Number
Is it prime or composite? 25 24
100 13

3. “Bad Date” Video

4. compare two sets of data (part to whole, or part to part)
Ratios
compare two sets of data (part to whole, or part to part)
a/b or
a to b
a:b

5. What is the ratio of red cubes to green cubes?
Part to Part Ratios
What is the ratio of red cubes to green cubes?
2 to 1
2:1
2/1 or

6. What is the ratio of red cubes to all the cubes?
Part to Whole Ratios
What is the ratio of red cubes to all the cubes?
2 to 5
2:5
2/5 or

7. Simplify a Ratio 2 to 6 2:6 2 6 1 to 3 1:3 1 3
A ratio can be simplified like a fraction.
Ratio of red cubes to all the cubes:
2 to 6
2:6
2 6
1 to 3
1:3
1 3
Simplifies to

9. 12:10
Simplify it 4 / 3 /
20 TO 15 or
4 to 3

10. Remember:
1 L = 1000 ml
/// ml

11. Be careful about the order!
What is the ratio of mice to cats?
Write the ratio with words
& then fill in the numbers:
Mice = 3
Cats or

12. 7:14
butter to flour?

13. What is the ratio of… Cats to Hamsters at Pet Place?
Dogs at Your Zoo to dogs at Pet Place?
All pets at Pet Stop to all pets at Your Zoo?
Hamsters
Dogs
Cats
Pet Place 4 2 3
Your Zoo 7 10 9
Pet Stop 5

14. The ratio of boys to girls in Room B is 15 to 12
The ratio of boys to girls in Room B is 15 to 12. What is the ratio of girls to total students in Room B?

15. What is the ratio of Zizu’s miles run to Mark’s miles run?
or 1 to 3

16. What is the ratio of Kaya’s miles run to Jim’s miles run?

17. My Halloween Candy What is the ratio of snickers to m&ms?
What is the ratio of snickers to all the candy?

18. Ratio of shaded squares to total squares:
5 x 10
= 50
or 1 to 2
Ratio of shaded squares to unshaded squares:
total
10 x 10
= 100
50 to 50
or 1 to 1

19. 45:100 or 9:20 45:55 or 9:11 Ratio of shaded squares to total squares:
Ratio of shaded squares to unshaded squares:
45:55
or 9:11

20. Ratio of total squares to shaded squares:
100:32
or 25:8

22. According to the table, what is the ratio of the number of B’s Camelia earned to the number of A’s she earned?
07 SOL

24. Ratios

25. Ratios

26. Math Is Fun
Good explanation and several real life examples.

27. Math Is Fun
Good explanation and several real life examples.

28. Arcademic
Think quick and find the equivalent ratio.