Comments for MathFax.com

Comment on Q&A: How to change a fraction to a percent? by Pammela A

Pammela A — Thu, 01 Jul 2010 18:20:15 +0000

the book is not wrong it is simply showing you another way to change a fraction into a percent.

percent means per 100… so as your example stated, if you have 3 out of 4 (3/4) that is the same as 75 out of 100 (75/100).

dividing as others mentioned would be the easiest way to make this conversion as you cannot always write a fraction in the form of a number over 100

Comment on Q&A: How to change a fraction to a percent? by allyson a

allyson a — Thu, 01 Jul 2010 17:20:56 +0000

3 and 4 are already in lowest terms, so you have to take the toehr two numbers: 75 and 100. Think of a number that goes into both 75 and 100 evenly… 25.

Now, you can divide both 75 and 100 by 25:

75 / 25 = 3
_____ ___
100 / 25 = 4

So, 75 = 3
___ ___
100 4
…. because you divided 75 and 100 by the same number, so the two fractions mean the exact same thing, just written a different way.

Now, 75/100=.75, which is the same thing as 75%

Hope that I helped, and goodluck =]

** sorry the fractions didn’t line up right…..
(75/100) / 25 = (3/4)

Comment on Q&A: How to change a fraction to a percent? by Crazy Eddy

Crazy Eddy — Thu, 01 Jul 2010 17:00:21 +0000

You’re book’s right, but there’s an easier way to convert. Just do long division.

Comment on Why does it seem that nobody can solve math problems on here? by Dennis W

Dennis W — Thu, 01 Jul 2010 16:58:09 +0000

I am an engineer and provide solutions to many problems, or at least hints as to how to proceed. However, if it looks like someone just wants their homework done I don’t bother with a response.

Too many request the answers to a list of problems which are clearly homework. Often I will solve a single problem if I have the impression that the asker has tried. It helps if you describe what you attempted.

I solve word problems frequently, but if they seem like they take too long to read I don’t bother. My time is limited and I am not about to read several paragraphs, when I can answer several other questions in the time it would take for that one problem.

Also,a large percentage of mathematical problems are written with poor syntax. If there is any ambiguity in how an equation can be interpreted I don’t bother.

Comment on Q&A: How to change a fraction to a percent? by Jerry P

Jerry P — Thu, 01 Jul 2010 16:46:26 +0000

divide numerator by denominator and than multiply it by 100 to get your actual percent.

Comment on Why does it seem that nobody can solve math problems on here? by Dimshitz

Dimshitz — Thu, 01 Jul 2010 16:45:13 +0000

some of us didnt have the internet around when we were doing homework (i wish i did though)

Comment on How can I report my son’s math teacher? by bcpathfinders

bcpathfinders — Thu, 01 Jul 2010 16:23:55 +0000

go and talk to the teacher. I did when that happened this year to my daughter who is in 7th grade> went in and said you know my daughter was in tears last night she has no clue as to what you were asking them to do. He said no worries I was just giving them something to do we are going to go over this today I did not expect anyone really to get it. So just go and talk to him . I would not report him

Comment on Q&A: How to change a fraction to a percent? by double impact

double impact — Thu, 01 Jul 2010 16:15:34 +0000

i dunno about the question uv posed to me but il try to explain how its dun

3/4 =0.75 which is 75%

let say 1/5 = 0.2 so is like 2/10 time the top and bottom by 10 ull have
20/100, so 20%

3/5 is 0.6 so its like 60/100… gives us 60%

Comment on Q&A: How to change a fraction to a percent? by Zara Sahana

Zara Sahana — Thu, 01 Jul 2010 15:58:14 +0000

A percent is a fraction in which the denominator is 100; the numerator is the percentage. However, not all fractions have nice denominators like 25 or 10. So, an easier way to figure out the percentage is to divide numerator by denominator and multiply the result by 100.
You could do
(3/4) * (25/25) = (75/100) to get 75%
The second way…
(3/4) * 100 = 0.75 * 100 = 75%

The word percent is derived from per-cent (cent is the latin root for 100…think century), so it is always out of 100.

~Zara Sahana

Comment on Why does it seem that nobody can solve math problems on here? by Jess

Jess — Thu, 01 Jul 2010 15:48:16 +0000

From my experience as a secondary math teacher many students these days expect everything to be spoon-fed to them.

That is not a bash on the students, but to the system.

With “No Child Left Behind” and some local programs that focus solely on the child’s ability to pass a specific test question worded a specific way on a specific test, these children (who are quickly coming into adulthood) have lost the ability to analyze a problem– especially if it is not worded exactly as they practiced in class.

This is leaving them feeling stuck when a problem does not look just like the one done in class. They simply have not been taught the proper tools to use when problem-solving. It’s not that they are dumb, they just haven’t been trained to THINK!