Răspuns :
28000/96 000=x/100
28/96=x/100
7/24=x/100
x=700/24=175/6=29,1(6)
x/100=29,1(6)/100=29,1(6)%
altfel:
28 000/96000=28/96=7/24=0,291(6)=29,1(6)/100=29,1(6)%
[tex]9600.....................100\% \\ \\ 28000...................x \\ \\ x = \frac{28000 \times 100}{96000} = 29,1(6) [/tex]