Download presentation

Presentation is loading. Please wait.

Published byBrittney Crawford Modified over 6 years ago

1
To calculate a fraction of a number mentally. To find a fraction of a quantity. To choose a way of working out and give a reason why that method was chosen. Lesson Objectives:

2
Mental starter: Using a spreadsheet to find fractions of numbers.

3
To find a fraction of a quantity. To choose a way of working out and give a reason why that method was chosen. Lesson Objectives:

4
3 4 of £2 Example problem

5
3 4 of £2 Example problem denominator numerator quantity

6
3 4 of £2 Method 1 First of all divide the quantity by the denominator of the fraction: £2 divided by 4 = 50p Next, multiply your answer by the numerator: 50p x 3 = £1.50

7
3 4 of £2 Method 2 First, convert the fraction to a decimal: 3/4 = 3 divided by 4 = 0.75 Next, multiply your answer by the quantity: 0.75 x £2 = £1.50

8
Which method is better? Why? Is one method always better than the other?

9
On your white board solve these problems using both methods, discuss quietly with the person next to you which method you think is better. Be prepared to share what you’ve learnt. Work out: 1.3/4 of £202.2/3 of £180 3.3/4 of £284.2/5 of £50 5.4/5 of £606.3/8 of £80 7.5/8 of £808.4/7 of £490

10
To find a fraction of a quantity. To choose a way of working out and give a reason why that method was chosen. Lesson Objectives:

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google