Question

急求两道数学题的答案！

1.363363/363636×636363/636636
2.[(2/1+4/1+6/1+8/1)-(3/1+6/1+9/1+12/1)]÷[(4/1+8/1+12/1+16/1)-(5/1+10/1+15/1+20/1)]

Answer 1

1
原式=（1001×363）/（36×10101）乘（63×10101）/(636×1001)
=363×63/36×636
=847/848
2
[(2/1+4/1+6/1+8/1)-(3/1+6/1+9/1+12/1)]÷[(4/1+8/1+12/1+16/1)-(5/1+10/1+15/1+20/1)] =1

Answer 2

1.363363/363636×636363/636636=847/848
2.[(2/1+4/1+6/1+8/1)-(3/1+6/1+9/1+12/1)]÷[(4/1+8/1+12/1+16/1)-(5/1+10/1+15/1+20/1)] =1
经卡西欧fx-82es重复计算核实的结果

Answer 3

都分解一下 变成363*1001*63*10101/36*10101*636*1001 约分一下得847/848
第二题算一下1

Answer 4

1. 363363/363636×636363/636636
=363*1001/36/10101*63*10101/636/1001
=363/36*636/63
=100+2/21*1/12
=100+1/126
=1261/126
2.[(2/1+4/1+6/1+8/1)-(3/1+6/1+9/1+12/1)]÷[(4/1+8/1+12/1+16/1)-(5/1+10/1+15/1+20/1)]
=（25/24-25/36）/（25/48-1/3）
=（25/72）/（3/16）
=50/27

Answer 5

1、 0.99882075471698113207547169811321≈1
2、 1