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

$\displaystyle \frac{1.42}{.10}$

The right answer (given on the packet):

$\displaystyle \frac{3}{11}$

Re: Operations with Positive Fractions

Let me ask you another question that might help you see your flaw in thinking.

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

Re: Operations with Positive Fractions

Quote:

Originally Posted by

**MathVideos** Let me ask you another question that might help you see your flaw in thinking.

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

$\displaystyle 1/2$

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?

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?

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.

$\displaystyle (part)/(whole)$

3 parts of 11 = 3/11