brandy327
Drama Llama
Posts: 6,353 
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Post by brandy327 on Sept 2, 2015 20:39:45 GMT
2nd week of school and I'm already googling trying to figure out how to do stuff. LOL
The instructions are:
Write each percent as a fraction in simplest form.
45 1/2%
If I'm reading google correctly, it says to divide the percentage by 100. So in this case, it would be 45 1/2 divided by 100. Which would equate to (fraction wise) 91/200. Is that right? TIA!!
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Post by AnastasiaBeaverhausn on Sept 2, 2015 21:10:02 GMT
That's what I keep coming up with.
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Post by littlemama on Sept 2, 2015 21:17:59 GMT
Another way of looking at it is this:
45.5% = 45.5/100. Can't have a decimal in a fraction, so need to multiply top and bottom by 10 to move the decimal. This results in 455/1000. Divide by 5 to reduce and you get 91/200.
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Post by ktdoesntscrap on Sept 2, 2015 21:18:42 GMT
I had that same questions last week. I said I dunno. email your teacher!  Good luck |
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perumbula
Pearl Clutcher
Posts: 3,439
Location: Idaho
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Post by perumbula on Sept 2, 2015 21:34:20 GMT
It helps to remember a percentage is a fraction written a different way. Per Cent. cent means 100. so per 100. every percentage can be written as x/100
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brandy327
Drama Llama
Posts: 6,353
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Post by brandy327 on Sept 2, 2015 22:20:59 GMT
Thanks ladies!! Your explanations helped tremendously!! |
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Post by monklady123 on Sept 2, 2015 22:25:09 GMT
My question is, why would one need to put a percent into fraction form? In real life I mean. I'm not trying to be snarky, I truly would like to know. Even though my initial reaction to the OP's question was  and  . But since I hate and detest math I'm always looking to see how something relates to real life. An ordinary person's real life. |
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Post by scrapqueen01 on Sept 2, 2015 22:43:53 GMT
My question is, why would one need to put a percent into fraction form? In real life I mean. I'm not trying to be snarky, I truly would like to know. Even though my initial reaction to the OP's question was and . But since I hate and detest math I'm always looking to see how something relates to real life. An ordinary person's real life. I've always believed that there are things taught in math that most people just won't use on a normal basis. Can anyone tell math is a source of contention for me? Dd doesn't get it and I'm not much help. These days if I need to know something I just Google it. I remember as a child my parents asking me what if I needed to know a particular math answer as an adult. My response was I would use a calculator. They would always say I wouldn't always have a calculator with me. Well, these days most phones have them so in reality I do always have a calculator on me. |
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Post by Yoki on Sept 2, 2015 22:50:11 GMT
My son who is in 7th grade says that you're correct.
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Post by Eddie-n-Harley on Sept 2, 2015 23:55:24 GMT
My question is, why would one need to put a percent into fraction form? In real life I mean. I'm not trying to be snarky, I truly would like to know. Even though my initial reaction to the OP's question was and . But since I hate and detest math I'm always looking to see how something relates to real life. An ordinary person's real life. You wouldn't necessarily need to put the percent in fraction form, but I think exercises like this help kids develop a "number sense." It's hard to describe what I mean by that, but it's a skill that lets you understand why 50% off, plus save an extra 50%, does not get you a free item. |
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Post by alexa11 on Sept 3, 2015 0:31:17 GMT
Another way of looking at it is this: 45.5% = 45.5/100. Can't have a decimal in a fraction, so need to multiply top and bottom by 10 to move the decimal. This results in 455/1000. Divide by 5 to reduce and you get 91/200. This is the explanation that I always gave my students and then after they moaned and groaned about the steps, I showed them the shortcut. 45 1/2 %- just changed the mixed numeral into an improper fraction- 2(45) +1 = 91 and then always take the denominator and add 2 zeros- so 91/200. Like 20 2/3% would be 62/300= 31/150. That way they don't have to worry if they have a fraction that is a repeating decimal.
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and 
. But since I hate and detest math I'm always looking to see how something relates to real life. An ordinary person's real life. 
