1997*0.3+0.5*0.12/1999*0.5
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1997*0.3+0.5*0.12/1999*0.51997*0.3+0.5*0.12/1999*0.51997*0.3+0.5*0.12/1999*0.51997×0.3+0.5×0.12÷1995
1997*0.3+0.5*0.12/1999*0.5
1997*0.3+0.5*0.12/1999*0.5
1997*0.3+0.5*0.12/1999*0.5
1997×0.3+0.5×0.12÷1995×0.5
=1997×0.3+0.6÷1995×0.5
=1997×0.3+0.6×0.5÷1995
=1997×0.3+0.3÷1995
=0.3×(1997+1995分之1)
=0.3×(3984015分之3984015+3984015分之1997)
=0.3×3984015分之3986012
=0.3×1995分之1996
=6650分之1996
=3325分之988
绝对是我自己做的······
1997*0.3+0.5*0.12/1999*0.5
1995*0.3/1997*0.5-1.2/1997怎么计算?
(1997*0.3)除以(1995*0.5)+(0.12除以1999)2003的平方—2002*2004若a#b=ac+6/ab且a#6=6#5,求(3#2)*(4#5)的值
简便计算1999*0.5/1997*0.3+1999/1.2
1997×0.3/1999×0.5+1.2/1999这道题怎样计算简单.
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