0.3+0.3÷0.3-0.3×0.3
=0.3+1-0.9
=0.3+0.1
=0.4
1.2÷1.25
=6/5÷10/8
=6/5×8/10
=48/50
=96/100
=0.96第二道/是×还是÷1.2÷1.25=6/5÷10/8=6/5×8/10除以8分之10等于乘以10分之8 =48/50=96/100=0.96