51/6 - 1/2 how do i find the answer?

4 2/3
How: well you don't have to do anything to the 5 for now so make sure that 1/6 and 1/2 have common denominators...so 1/2 time 3 both top and bottom (numerator and denominator) now 1/6 - 3/6 is -2/6 and simplified is -1/3 so now you subtract 5 and 1/3 and you have to have common denominators so 5/1 times 3 with both numerator and denominator is 15/3, so 15/3 - 1/3 is 14/3 and to make in to a mixed number you have to divide,and 3 goes into 14 4 times because 4 x 3 and you can't do a number that's bigger than 14 so 12 is good ( 4 x 3) now 14 - 12 is 2 so you would have 4 2/3

Do you need with the x value for the minimum? its always between the two intercepts for a parabola