(-2有3分之1)的2次方-(-6.5)乘13分之4+(-2)的4次方除以【2+(-2)的3次方】
=(-7/3)²+2+16÷(2-8)
=-49/9+2-8/3
=-49/9-24/9+2
=-73/9+18/9
=-55/9
=6又9分之1