Daca a/b=5,a/c=5,aflati b/c

Răspuns :

a/b = 5  = > b = a/5
a/c = 5  = > c = a/5

b/c = a/5 : a/5 = a/5 x 5/a = 1 
a/b=5
a/c=5
b/c=?

b=a/5
c=a/5

b/c=a/5:a/5=a/5x5/a=1

Succes !!