# Operations with Positive Fractions

• Apr 4th 2012, 12:48 PM
vaironxxrd
Operations with Positive Fractions
Sorry if this problem is very basic I just know the right procedure. This questions are from a placement test I will be taking, so expect to see similar ones.

If you have four quarters, three dimes, two nickels, and two pennies, what fraction of the whole coin
collection is in dimes?

My procedure:
Total money(whole coin collection ?) is - \$1.42
$\frac{1.42}{.10}$

The right answer (given on the packet):
$\frac{3}{11}$
• Apr 4th 2012, 01:12 PM
MathVideos
Re: Operations with Positive Fractions
If I have 1 red sock and 1 black sock, what fraction of my socks are red?
• Apr 4th 2012, 01:24 PM
vaironxxrd
Re: Operations with Positive Fractions
Quote:

Originally Posted by MathVideos
If I have 1 red sock and 1 black sock, what fraction of my socks are red?

$1/2$
• Apr 4th 2012, 01:28 PM
MathVideos
Re: Operations with Positive Fractions
Does that give you any insight into where you made your mistake or do you need me to explain further?
• Apr 4th 2012, 01:53 PM
vaironxxrd
Re: Operations with Positive Fractions
Quote:

Originally Posted by MathVideos
Does that give you any insight into where you made your mistake or do you need me to explain further?

Sincerely, I had to look the answer up to not be embarrassed, which is something I won't be able to do in the test.

But to know if understand the concept they are asking me how many dimes, 3, are in the whole coin collection, 4+3+2+2 = 11?
• Apr 4th 2012, 02:01 PM
MathVideos
Re: Operations with Positive Fractions
That is correct (:

Don't forget what a fraction literally is. It's saying what portion of the whole do you have.

$(part)/(whole)$

3 parts of 11 = 3/11