It is 1.
20 over 8 equal 10 over 4 equal 5 over 2
No.
Yes.
Yes.
Yes it can, if you divide 160 by 8 you get 20, so 160 over 8 can be simplifed to 20 over 1. Normally expressed as 1 over 20 or 1/20.
One over ten.
2/27
1/4
It is already simplified.
43/360
one half.
2/2 = 1