a = 0,(2) = 2/9
1/a = 1/(2/9) = 1* 9/2 = 9/2
Cand impartim doua fractii, o inmultim pe prima (in cazul nostru 1/1) cu a doua rasturnata.
Salut,
[tex]a=0,(2)=\dfrac{2}{9},\ deci\ \dfrac{1}a=\dfrac{1}{\dfrac{2}9}}=\dfrac{9}2.[/tex]
Green eyes.
