﹙﹣1﹚的5次方－[﹣3×﹙﹣3分之2﹚的平方－1又3分之1÷﹙﹣2﹚的平方
=-1-[-3×4/9-4/3÷4]
=-1-[-4/3-1/3]
=-1+5/3
=2/3