7 out of 4
Add the letter "n" after the first article. That is, change "a" to "an".
It is: 11.13 = 1113/100 as an improper fraction
Thirteen and three fifths, as an improper fraction, is 68/5.
Three and four sevenths in an improper fraction is 17857/5000
Thirteen over three.
An improper fraction is a fraction. It can't become a proper fraction.
4+3/5 = 23/5
Some numbers are improper fractions and some are not. For example, 1/2 or 0.5 is a number but not an improper fraction. And there is no way in which you can express it as an improper fraction.