Question

3/8*5/6=?
-14/15*(-3/7)=?
18/55*(-11/18)=?
-21/32*(-12/35)=?
17/40*(-8/51)=?
-15/22*4/27=?

Answer 1

1. 5/16
2. 2/5
3. 1/5
4. 9/40
5. 1/15
6. 10/99