列式计算:-6X(-0.25)X十四分之十一=
问题描述:
列式计算:-6X(-0.25)X十四分之十一=
答
=(1-1/51)*(1+1/51)*(1-1/52)*(1+1/52)*..............*(1-1/152)*(1+1/152)
=(50/51)*(52/51)*(51/52)*(53/52)*..............*(151/152)*(153/152)
中间约分
=(50/51)*(153/152)
=75/76
答
-6X(-0.25)X14分之11
=6X0.25X14分之11
=2分之3X14分之11
=28分之33
=1又28分之5