[1又5分之3×(1-9分之4)]的二次方÷[(1-6分之1)×(﹣5分之2)]的三次
=(8/5x5/9)²÷[5/6x(-2/5)]³
=64/81÷(-1/27)
=64/81*(-27)
=-64/3
如图:
如图
[1又5分之3×(1-9分之4)]的二次方÷[(1-6分之1)×(﹣5分之2)]的三次方=(8/5x5/9)²÷(5/6x2/5)³=64/81÷1/27=64/3