Question

@abtster

Answer 1

43/99

Answer 2

I don't understand the rule @Kamille

Answer 3

I really can't explain it well:/ Maybe @perl

What I do:

0.(43)=x (imagine, that 0.(43) is x)
0.(43)=x|*100(because you don't want to have that periodic thing, so you multiply all equation), you get
43.(43)=100x now from the second equation you substitute the first one:
43.(43)-0.(43)=100x-x
43x=99 (now you are solving the equation)
43x=99|:43
x=43/99

Answer 4

tho I am not completly sure how it is done when it is like 8.83(2)

Answer 5

@geerky42