Mathsercise-C Ready? Ratio Here we go!.

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Presentation transcript:

Mathsercise-C Ready? Ratio Here we go!

Check the total values add back to the original amount! Share £250 in the ratio 3:7 3 + 7 = 10 Question 2 250 ÷ 10 = £25 3 x £25 = £75 Add the parts of the ratios together to find out how many “shares” there are Check the total values add back to the original amount! 7 x £25 = £175 Answer £75:£175 1 Ratio

2 Ann and John share £140 in the ratio 2:5. How much does Ann receive? Question 3 2 + 5 = 7 So Ann receives £40 £140 ÷ 7 = £20 Answer 2 x £20 = £40 5 x £20 = £100 2 Ratio

3 Andy, Belinda and Carl share £126 in the ratio 5:3:1. How much does Belinda get? Question 4 5 + 3 + 1 = 9 £126 ÷ 9 = £14 So Belinda receives £42 Answer 5 x £14 = £70 3 x £14 = £42 1 x £14 = £14 3 Ratio

When Bill reached his 100th birthday he had 12 grand-daughters and 20 grandsons. Write down the number of grand-daughters to the number of grandsons as a ratio in its simplest form Start 12 : 20 Answer 6 : 10 3 : 5 4 Ratio