1/4÷[(1/3+5/6)×2/7]
=1/4÷[7/6×2/7]
=1/4÷1/3
=1/4×3
=3/4
3/5×[(7/12-1/3)÷4/3]
=3/5×[3/12×3/4]
=3/5×3/16
=9/80
1-5/3÷5/2-1/3
=1-5/3×2/5-1/3
=1-2/3-1/3
=0化简比4分之3:0.350.24:0.125分之3:28分之7:3分之112分之5小时:15分1吨:300千克求比值14分之3:9分之725分之6:5分之28分之3:0.259分之4:5分之41:0.253:10分之3(给我答案,快快快,等下再给你5分)4分之3:0.35==15:70.24:0.12==2:15分之3:2=3:108分之7:3分之1=21:812分之5小时:15分=5:31吨:300千克=10:3求比值14分之3:9分之725分之6:5分之2=0.68分之3:0.25=1.59分之4:5分之4=5/91:0.25=43:10分之3=1014分之3:9分之7的比值14分之3:9分之7=27/98