2/81
Yes.
81 over 200 is the same as 81 divided by 200 (or 81/200), which is 0.405
200/20=10.
Yes 4/9
simplify 340/200 would be the 1/7. This is a fraction in the lowest term.
.405
200/100 = 2/1 = 2
4/81 is the lowest you can simplify it.
81/100 = 162/200 and 243/300
Multiply and simplify 3^-2 x3^6
The fraction 1997/200 cannot be reduced any more.