First convert everything into an improper fraction. 7 1/2=15/2 4 1/2= 9/2 5 1/8= 41/8 Now do what is in parentheses 2 and 8 share 8 as their LCD 9/2=36/8 36/8-41/8=-5/8 Now divide. (15/2)/(-5/8) (15/2)*(-8/5) 15*-8=-120 5*2=10 -120/10 Now simplify Divide both by 10 -120/10=-12 10/10=1 -12 is your answer!
