(五分之四)平方除以(-四分之五)-2次方+(X-π)0次方-(-二分之一)0次方除以(-2)-3次方

(4/5)^2÷(-5/4)^(-2)+(x-π)^0-(-1/2)^0÷(-2)^(-3)
=(4/5)^2×(5/4)^2+1-1÷(-8)
=1+1+1÷8
=2+1/8
=17/8