Ratio www mathsrevision com S 4 Simplifying Ratios

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Ratio www. mathsrevision. com S 4 Simplifying Ratios Ratio Calculations Proportional Division 25 -Oct-21

Ratio www. mathsrevision. com S 4 Simplifying Ratios Ratio Calculations Proportional Division 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Learning Intention 1. 25

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Learning Intention 1. 25 -Oct-21 Success Criteria To understand what a ratio is and explain how we can sometimes simplify them. 1. Understand the term ratio. . 2. Calculate and simplify basic ratios. Created by Mr. Lafferty Maths Dept.

Ratio Simplifying a ratio ? S 4 www. mathsrevision. com Ratios can be used

Ratio Simplifying a ratio ? S 4 www. mathsrevision. com Ratios can be used to compare different quantities Example : There are 2 triangles and 3 rectangles. The ratio of triangles to rectangles is said to be 2 : 3 Note: The ratio of rectangles to triangles is said to be 3 : 2 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Simplifying a ratio is

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Simplifying a ratio is like simplifying fractions Fraction : Ratio : 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Now try Ex 1&2

Ratio Simplifying a ratio ? www. mathsrevision. com S 4 Now try Ex 1&2 Ch 11 (page 124) 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Calculations www. mathsrevision. com S 4 Learning Intention 1. Success Criteria To show

Ratio Calculations www. mathsrevision. com S 4 Learning Intention 1. Success Criteria To show to do ratio calculations. 1. Use tabulating method to work out ratios. 2. Show appropriate working. 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Calculations www. mathsrevision. com S 4 Example : The ratio of boys to

Ratio Calculations www. mathsrevision. com S 4 Example : The ratio of boys to girls is 4: 5. If there are 16 boys, how many girls are there. boys girls x 4 25 -Oct-21 4 5 16 20 Created by Mr. Lafferty Maths Dept. x 4

Ratio Calculations www. mathsrevision. com S 4 Example : The ratio of cars to

Ratio Calculations www. mathsrevision. com S 4 Example : The ratio of cars to buses is 3: 7. If there are 49 buses, how many cars are there. cars buses x 7 25 -Oct-21 3 7 21 49 Created by Mr. Lafferty Maths Dept. x 7

Ratio Calculations www. mathsrevision. com S 4 Now try Ex 3 Ch 11 (page

Ratio Calculations www. mathsrevision. com S 4 Now try Ex 3 Ch 11 (page 128) 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths

Starter Questions www. mathsrevision. com S 4 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Sharing Money www. mathsrevision. com S 4 Learning Intention Success Criteria 1. Explain

Ratio Sharing Money www. mathsrevision. com S 4 Learning Intention Success Criteria 1. Explain how to work out proportional division by using shares. 1. Work out equal number of shares for a ratio. 2. Solve problems using shares. 3. Show appropriate working. 25 -Oct-21 Created by Mr. Lafferty Maths Dept.

Ratio Sharing Money www. mathsrevision. com S 4 Example : Step 1 : Bill

Ratio Sharing Money www. mathsrevision. com S 4 Example : Step 1 : Bill and Ben share a raffle win of £ 400 in the ratio 3: 5. How much does each get ? Since the ratio is 3: 5, there are : 3+5 = 8 shares Step 2 : Each share is worth : Step 3 : Bill gets 3 x 50 = £ 150 Ben gets 5 x 50 = £ 250 25 -Oct-21 Created by Mr. Lafferty Maths Dept. Check ! 150 + 250 = 400

Ratio Sharing Money www. mathsrevision. com S 4 Example : Step 1 : Ryan

Ratio Sharing Money www. mathsrevision. com S 4 Example : Step 1 : Ryan and Ross share 24 cakes in the ratio 3: 1. How many cakes does each get ? Since the ratio is 3: 1, there are : 3+1 = 4 shares Step 2 : Each share is worth : Step 3 : Ryan gets 3 x 6 = 18 Ross gets 1 x 6 = 6 25 -Oct-21 Created by Mr. Lafferty Maths Dept. Check ! 18 + 6 = 24

Ratio Sharing Money www. mathsrevision. com S 4 Now try Exercise 4 Ch 11

Ratio Sharing Money www. mathsrevision. com S 4 Now try Exercise 4 Ch 11 (page 130) 25 -Oct-21 Created by Mr. Lafferty Maths Dept.