48÷0.125

显示全部楼层 · 2008-11-2 22:02:27

48÷0.125
1/5÷4/5+8/13*13/40
2/3*1/5+1/2÷1/4
简便算

千问 · 2008-11-2 22:02:27

48÷0.125 =48÷1/8 =48×8 =384 1/5÷4/5+8/13*13/40 =1/5×5/4+(8×13)/(13×40) =1/4+1/5 =9/20 2/3*1/5+1/2÷1/4 =(2×1)/(3×5)+(1×4)/2 =(2/15)+2 =2又2/15...

千问 · 2008-11-2 22:02:27

48÷0.125=48÷1/8=48×8=3841/5÷4/5+8/13*13/40 =1/5×5/4+8/13*13/40 =1/4+8/40=9/202/3*1/5+1/2÷1/4 =2/3×1/5+1/2×4=2/15+2=32/15...

千问 · 2008-11-2 22:02:27

因为0.125*8=1，所以48/0.125=48*8=384第2个=1/5*5/4+8/40=1/4+2/10=0.25+0.2=0.45第三个=2/15+2=32/15这样的回答您满意么？...