计算题1-0.024÷0.08×352×17-4860÷12（12.5+1.4÷7）×0.5434-1713×216+112237×[1112÷（0.75+23）-25]．

Question

计算题
1-0.024÷0.08×3
52×17-4860÷12
（12.5+1.4÷7）×0.5
4(3)/(4)-1(7)/(13)×2(1)/(6)+1(1)/(2)
2(3)/(7)×[(11)/(12)÷（0.75+(2)/(3)）-(2)/(5)]．

Answer 1

（1）1-0.024÷0.08×3
=1-0.3×3
=1-0.9
=0.1；

（2）52×17-4860÷12
=884-405
=479；

（3）（12.5+1.4÷7）×0.5
=（12.5+0.2）×0.5
=12.7×0.5
=6.35；

（4）4(3)/(4)-1(7)/(13)×2(1)/(6)+1(1)/(2)
=4(3)/(4)-3(1)/(3)+1(1)/(2)
=2(11)/(12)；

（5）2(3)/(7)×[(11)/(12)÷（0.75+(2)/(3)）-(2)/(5)]
=2(3)/(7)×[(11)/(12)×(12)/(17)-(2)/(5)]
=2(3)/(7)×[(11)/(17)-(2)/(5)]
=(17)/(7)×(21)/(85)
=(3)/(5)