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Thursday 8 December 2016

simplifying ratios

here, we are learning to simplify ratios. how do you simplify a ratio? well, it is easy. you find the highest common factor of the two numbers of the ratio and you divide it by the highest common factor. confusing? for example, 12 to 8 or 12:8 the highest common factor is 4 so you divide both of them by 4 and that equals 3 to 2 or 3:2. some of them cannot be simplified like 4:5 or 3:2. an easy way to figure out if you can simplify it is if both the numbers are prime numbers or if the highest number is and prime.

Find the ratio of these images. Find the simplified ratio as well.
THE FIRST ONE HAS BEEN DONE FOR YOU.

Picture
Ratio
Simplified Ratio
Screen Shot 2016-12-08 at 11.12.39 AM.png
15:6
Cannot be simplified
Screen Shot 2016-12-08 at 11.16.33 AM.png
12:2
6:1
Screen Shot 2016-12-08 at 11.16.37 AM.png
4:9
Cannot be simplified
Screen Shot 2016-12-08 at 11.16.40 AM.png
8:5
Cannot be simplified
Screen Shot 2016-12-08 at 11.16.42 AM.png
12:8
3:2
Screen Shot 2016-12-08 at 11.16.46 AM.png
15:4
Cannot be simplified
Screen Shot 2016-12-08 at 11.16.50 AM.png
5:11
Cannot be simplified
Screen Shot 2016-12-08 at 11.16.53 AM.png
12:2
6:1
Screen Shot 2016-12-08 at 11.16.58 AM.png
4:11
Cannot be simplified
Screen Shot 2016-12-08 at 11.17.01 AM.png
11:6
Cannot be simplified
Screen Shot 2016-12-08 at 11.17.05 AM.png
12:9
4:3
Screen Shot 2016-12-08 at 11.17.08 AM.png
11:2
Cannot be simplified
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