1. Ratio: Converting ratio to fractions
Silent
Teacher
Intelligent Practice
Narration
Your Turn
The ratio of red balls to green balls in a bag is 2 : 3
What fraction of the balls are red?
The ratio of red balls to green balls in a bag is 2 : 5
Practice

2. Worked Example Your Turn @mrbartonmaths
The ratio of red balls to green balls in a bag is 2 : 3
What fraction of the balls are red?
The ratio of red balls to green balls in a bag is 2 : 5
What fraction of the balls are red?
@mrbartonmaths

3. 1. The ratio of red balls to green balls in a bag is 1 : 3
What fraction of the balls are red?
2. The ratio of red balls to green balls in a bag is 1 : 3
What fraction of the balls are green?
3. The ratio of red balls to green balls in a bag is 3 : 1
4. The ratio of red balls to green balls in a bag is 4 : 1
5. The ratio of red balls to green balls in a bag is 4 : 1
6. The ratio of red balls to green balls in a bag is 8 : 1
7. The ratio of red balls to green balls in a bag is 2 : 1
8. The ratio of red balls to green balls in a bag is 4 : 2
@mrbartonmaths

4. 9. The ratio of red balls to green balls in a bag is 4 : 4
What fraction of the balls are red?
10. The ratio of red balls to green balls in a bag is 1 : 1
11. The ratio of red balls to green balls in a bag is 1 : 1
What fraction of the balls are green?
12. The ratio of red balls to green balls in a bag is 1 : 5
13. The ratio of red balls to green balls to blue balls in a bag is 1 : 5 : 2
14. The ratio of red balls to green balls to blue balls in a bag is 1 : 5 : 2
15. The ratio of red balls to green balls to blue balls in a bag is 3 : 5 : 2
16. The ratio of red balls to green balls to blue balls in a bag is 9 : 15 : 6
@mrbartonmaths

5. 1. The ratio of red balls to green balls in a bag is 1 : 3
What fraction of the balls are red?
2. The ratio of red balls to green balls in a bag is 1 : 3
What fraction of the balls are green?
3. The ratio of red balls to green balls in a bag is 3 : 1
4. The ratio of red balls to green balls in a bag is 4 : 1
5. The ratio of red balls to green balls in a bag is 4 : 1
6. The ratio of red balls to green balls in a bag is 8 : 1
7. The ratio of red balls to green balls in a bag is 2 : 1
8. The ratio of red balls to green balls in a bag is 4 : 2
1 4
3 4
1 4
1 5
4 5
8 9
2 3
4 6 = 2 3
@mrbartonmaths

6. 9. The ratio of red balls to green balls in a bag is 4 : 4
What fraction of the balls are red?
10. The ratio of red balls to green balls in a bag is 1 : 1
11. The ratio of red balls to green balls in a bag is 1 : 1
What fraction of the balls are green?
12. The ratio of red balls to green balls in a bag is 1 : 5
13. The ratio of red balls to green balls to blue balls in a bag is 1 : 5 : 2
14. The ratio of red balls to green balls to blue balls in a bag is 1 : 5 : 2
15. The ratio of red balls to green balls to blue balls in a bag is 3 : 5 : 2
16. The ratio of red balls to green balls to blue balls in a bag is 9 : 15 : 6
4 8 = 1 2
1 2
1 2
5 6
5 8
1 8
3 10
9 30 = 3 10
@mrbartonmaths