I am going to take the placement test for college soon and I have not been in school since '89 so I need some help with a couple questions ...
how do you figure out this ... 8 dived by 3/5? Please explain the steps.
I am sure as I stidy I will have more questions, any help is greatly appreciated!
2006-08-17 05:22:41 · 16 answers · asked by bluskygreengrass 5 in Education & Reference ➔ Higher Education (University +)
Try this site for all your math questions. It's where my daughter aced her math exams.
http://mathforum.org/dr.math/
2006-08-17 05:32:52 · answer #1 · answered by Big-Sister 4 · 1⤊ 0⤋
To tell you the truth that is a pretty simple question, which might make it a little more difficult to explain. It is like trying to tell someone why 2 + 2 is 4.....but I will give it a shot...
There are many different ways to think about this for you. You can either make the 3/5 into a decimal value to make it easier. Or you can make the 8 into a fraction with a common denominator to the 3/5. We will go with the latter.
If 1 = 5/5 then 8 is of course 40/5 (8 x 5 = 40)
We then have 40/5 divided by 3/5....the 5's cancel out and we are left with 40/3....which of course is much easier for you to do...and the answer is 13 1/3 (13.33333)..
Hope that helps...
2006-08-17 12:32:35 · answer #2 · answered by Matt 2 · 2⤊ 0⤋
Dividing by a number is the same as multiplying by the number's reciprocal. The reciprocal of a fraction is just flipping the numerator and the denominator, such as 3/5 and 5/3. So 8 divided by 3/5 is the same as 8 times 5/3.
8 * 5 / 3 = 40 / 3 = 13 1/3
2006-08-17 12:30:28 · answer #3 · answered by Anonymous · 2⤊ 0⤋
this is the way to do it:
8/1 divided by 3/5 = 8/1 times 5/3 = 40/3(improper fraction)= how many times 3 goes into 40 (13 times and 1 remainder out of 3) therefor the answer is 13 and 1/3
simply put: 8/1 x 5/3 = 13 1/3
you can ask me. I am in Jr. High School so I am not at all rusty, email me though yahoo and I can give you my email adress!
2006-08-17 12:34:38 · answer #4 · answered by Keys 3 · 1⤊ 0⤋
You have to cross multiply.
1. You put 8 over 1 (8/1)
2. Then you flip the fraction (it is now 5/3) and multiple straight across. Or you could leave it as 8/1*3/5 then corss multiple to have 8*5 over 1*3 but I always flip the second fraction, it is easier to me that way)
3 You should get 40/3 then just reduce that down (3 goes in to 40 13 times with 1 left over) you should have 13 1/3 .
Good luck on your test!
2006-08-17 12:32:19 · answer #5 · answered by sdarp1322 5 · 2⤊ 0⤋
8 divided by 3/5 is the same as 8 multiplied by 5/3. So the answer is 40/3 or 13.333333333333333333333
2006-08-17 12:29:50 · answer #6 · answered by Anonymous · 2⤊ 0⤋
this is what the problem would look like:
8/1 divided by 3/5 = ?
invert the second set of numbers ie:
8/1 & 5/3
once you've done that you multiply the numbers and then simplify the fraction if possible....so your answer is :
8/1 * 5/3 = 40/3 = 13 1/3
2006-08-17 12:34:31 · answer #7 · answered by tiffany6322 4 · 2⤊ 0⤋
When you divide by a fraction. you just multiply by the opposite of that fraction
Example: 8 divided by 3/5 is in fact 8 multiplied by 5/3
2006-08-17 12:32:40 · answer #8 · answered by handydy 1 · 2⤊ 0⤋
WHEN 8 is divided by3/5
= 8/1 / 3/5
= 8*5 / 1*3
=40/3
=13.333
2006-08-17 12:31:16 · answer #9 · answered by a1 1 · 2⤊ 0⤋
are u talking about 8 divided by 3/5? when you divide by a fraction, you flip the fraction and mulitply, so its 8 times 5/3 which would be 40/3
2006-08-17 12:29:21 · answer #10 · answered by Anna 2 · 2⤊ 0⤋
take the reciprocal (spelling?) of 3/5 and multiply it by the 8
8 * 5/3 = 40/3 = 13 1/3
2006-08-17 12:29:39 · answer #11 · answered by prof_einstein 2 · 2⤊ 0⤋