32.1*6.54/98.7/65.4*9.
问题描述：
32.1*6.54/98.7/65.4*9.
请问需要多长时间才能得到答案？
答
32.1*6.54/98.7/65.4*9.87/321
=32.1/10(10*65.4)/9.87/95.4*9.87*10/321/10
=3.21*65.4/98.7/65.4*98.7/3210
=3.21/3210
=0.001