ajutor!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
![Ajutor class=](https://ro-static.z-dn.net/files/d14/5d9108c6e0ca245a498efa4ade4c8f4c.jpg)
Răspuns:
-12/49 • 14/15 • (-21/20) =
-8/35 • -21/20 =
6/25