How do you get the answer to three quarters of thirteen?

Answer 1

Multiply by 3 then divide by 4

AnswerOne way is to look at the problem as fractions of equality. Lets use "X" as the number we want to get. Then we can look at the problem as follows:

3 X

_ = _

4 13

Right? 3 out of 4 is the same as WHAT out of 13....

Now cross-multiply (numerator of one with denominator of the other)

4 times X = 4X, and 3 times 13= 39

When you cross multiply, the sides are still equal:

4X=39

Now divide by 4 to put only "X" on one side (remember, "X" is what you're looking for):

4X divided by X is just "X", and 39 divided by 4 comes out to 9 3/4.

So your equsion should now read X= 9 3/4.

That's it! You were looking for a number you defined as X, and your equation now reads "X=9 3/4". Your number is 9 3/4.

Hope this helps. There are other wasy to do it, see what others think too.