a) 2 : 5 = $\frac{2}{5}$ = $\frac{40}{100}$= 40%
b) 2 : 3 = $\frac{2}{3}$ =0,6666 = 66,66%
c) 3,2 : 4 = $\frac{3,2}{4}$= $\frac{80}{100}$ = 80%
d) 7,2 : 3,2 = $\frac{7,2}{3,2}$ = $\frac{225}{100}$= 2,25 = 225%.
a) 2 : 5 = $\frac{2}{5}$ = $\frac{40}{100}$= 40%
b) 2 : 3 = $\frac{2}{3}$ =0,6666 = 66,66%
c) 3,2 : 4 = $\frac{3,2}{4}$= $\frac{80}{100}$ = 80%
d) 7,2 : 3,2 = $\frac{7,2}{3,2}$ = $\frac{225}{100}$= 2,25 = 225%.