4 and 1/2 divided by 2 and 5/6 would be 5/2 divided by 17/6. reciprocate (flip) the second fraction and reverse the operation so its now 5/2 multiplied by 6/17. Multiply the numerators (5×6) to get 30, then the denominators (2×17) to get 34, So the fraction is now 30/34. simplify that to 15/17.