Question

Determinati numarul rational pe care-l reprezinta urmatoarele fractii zecimale
0,24=
1,23=
3,5=
0,3=
0,(2)=
0,(18)=
-1,(13)=
0,2(45)=
-0,2(36)=

Answer 1

$0,24= \frac{24}{100} = \frac{12}{50} = \frac{6}{25} \\1,23= \frac{123}{100} \\ 3,5= \frac{35}{10} \\ 0,3= \frac{3}{10} \\ 0,(2)= \frac{2}{9} \\ -1,(13)= -\frac{113-1}{99}=- \frac{112}{99} \\ 0,2(45)= \frac{243}{990}= \\ -0,2(36)= -\frac{236-2}{990} =- \frac{234}{990} =- \frac{167}{445}$