rezolvatimil va rogggggggg punctul 2 ex 2
![Rezolvatimil Va Rogggggggg Punctul 2 Ex 2 class=](https://ro-static.z-dn.net/files/d03/f5e00d0663b38380e9dea020954b6ad5.jpg)
Răspuns:
0,2 = 2/10 = 1/5
0,5 = 5/10 = 1/2
a/5 = b/2 = k
a = 5k
b = 2k
(10k + 10k)/7k = 20/7