Răspuns :
Răspuns:
Explicație pas cu pas:
a = 2,1(6) = (216 - 21)/90 = 195/90 = 39/18 = 13/6
a/b = 13/6 : 4/3 = 13/6 x 3/4 = 13/8 = 1,625
[tex]\it a=2,1(6)=2\dfrac{16-1}{90}=2\dfrac{\ \ 15^{(15}}{90}=2\dfrac{1}{6}=\dfrac{13}{6}\\ \\ \\ b=\dfrac{4}{3}\\ \\ \\ \dfrac{a}{b}=a:b=\dfrac{13}{6}:\dfrac{4}{3}=\dfrac{13}{6}\cdot\dfrac{3}{4}=\dfrac{\ 39^{(3}}{24}=\dfrac{13}{8}=1,625[/tex]