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Maths Questions
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Please answerer these questions the are in percentages and they need to be converted into fractions here are the questions
1) 10%
2) 13%
3) 15%
4) 140%
thanks to the people who answered back
1) 10%
2) 13%
3) 15%
4) 140%
thanks to the people who answered back
Answers
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Bobthebandit, take, for example, 20%. That means 20 over 100 as a fraction. Next you think of a number that divides evenly into BOTH 20 and 100. You might pick 2, so 2 into 20 goes 5 times, and 2 into 100 goes 50 times, So, that gives you a new fraction: 5 over 50. But wait a minute, you think, 5 and 50 can BOTH be divided by 5. So five goes into five 1 time, and 5 goes into 50 10 times. therefore you end up with 1/10. Your question about 13% means 13 over 100, and there is no number that divides evenly into BOTH 13 and 100; therefore, 13% is simple 13/100.
some number followed by a percentage means that you divide by 100 to get the fraction. Thus:
10%=10/100
13%=13/100
15%=15/100
And so on. Then you can look to see if the fraction can be simplified, but the initial conversion from percentage to fraction is literally just to replace "%" by "/100".
To check if a fraction can be simplified you look for numbers that go into both the top and the bottom of that fraction. So for example 10 and 100 both can be divided by 10, with 10/10 = 1 and 100/10 = 10, so that 10/100 = 1/10. Similar rules apply to the rest.
10%=10/100
13%=13/100
15%=15/100
And so on. Then you can look to see if the fraction can be simplified, but the initial conversion from percentage to fraction is literally just to replace "%" by "/100".
To check if a fraction can be simplified you look for numbers that go into both the top and the bottom of that fraction. So for example 10 and 100 both can be divided by 10, with 10/10 = 1 and 100/10 = 10, so that 10/100 = 1/10. Similar rules apply to the rest.
I was trying to be so careful but still messed it up:) Correction: You might pick 2, so 2 into 20 goes 10 times, and 2 into 100 goes 50 times, So, that gives you a new fraction: 10 over 50. But wait a minute, you think, 10 and 50 can BOTH be divided by 10. So 10 goes into 10 1 time, and 10 goes into 50 5 times. therefore you end up with 1/5.
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