Question

九分之四除以五=？三分之二除以8=？十二分之五除以3=？九分之四除以4=？0除以三分之二=？四分之一除以2=？

Answer 1

1除以二分之一除以三分之二除以四分之三除以五分之四除以······除以2006分之2005
+1x2x3/2x4/3x5/4······x2006/2005
=1x2006
=2006
乘以一个数，等于乘以这个数的倒数，然后分子分母相约，最后

Answer 2

4/9÷5
=4/9*1/5
=4/45

2/3÷8
=2/3*1/8
=1/12

5/12÷3
=5/12*1/3
=5/36

4/9÷4
=4/9*1/4
=1/9

0÷(2/3)=0

1/4÷2
=1/4*1/2
=1/8

Answer 3

1 (4/9)÷5==4/45
2 (2/3)÷8=1/12
3 (5/12)÷3=5/36
4 (4/9)÷4=1/9
5 0÷(2/3)=0
6 (1/4)÷2=1/8