How you make a mixed number is
1) See how many times the denominator (bottom number) can go into the numerator (top number). This will be the coefficient. In our case 3 can go into 13, 4 times. (3*4=12)
2) Then you put whatever is leftover as the numerator
3) Finally you keep the original denominator
So, your mixed number should be 4 1/3
