Change the mixed number 2(3/4) to an improper fraction and show how it happens

First, we have to write the mixed number as a sum, like
this:

2 + 3/4

Then we have to
show that the denominator of 2 is 1.

2/1 +
3/4

In order to add the 2 ratios, they have to have the
same denominator. For this reason, we'll multiply the ratio 2/1 by
4.

4*2/4*1 + 3/4 = 8/4 +
3/4

Now we'll add the numerators, kepping the same
denominator.

8/4 + 3/4 = (8+3)/4 =
11/4

2(3/4) =
11/4