top.....2x^-7/4....me assume thats spozed tu be 2*x^ (-7/4)
bottom...2x^4/3.. become 2*x^(4/3)
top/bottom...2/2 become 1
top/bottom=[x^(-7/4)] * [x^(-4/3)]
=x^ [(-7/4) -(4/3)], so power= sum av 2 frakshjuns
(7/4) +(4/3)=(21/12) +(16/12)=(21+16)/12=37/12
top/bottom=x^-(37/12) or x^-3.0833333..