Anything over itself is 1. 1 is a whole number.
If the mixed number is x y/z then the numerator is (x*z + y)
To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
If the mixed number is x y/z then the improper fraction is (xz + y)/z
15 over 5 as a mixed number = 3 which is a whole number and not a mixed number
To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
3 over 4. There is no mixed number
34 over 6 as a mixed number is: 52/3
53 over 4 is 13¼ as a mixed number.
Of course not. The graph can cross the y-axis anywhere ... fraction, mixed number, whole number, or zero, and there are even some graphs that don't cross the y-axis anywhere.
The mixed number of 23 over 3 is 72/3
13 over 7 in a mixed number = 16/7
5 over 2 as a mixed number is 21/2