Răspunsuri

2014-09-20T14:34:42+03:00
1/3+2/5x7/4-5/6=1/3+14/20-5/6=aducem la acelasi numitor,adica amplificam1/3cu20,14/20cu3,5/6cu10 si =>20/60+42/60-50/60=20+42-50/60=12/60,simplificam cu 12 si obtinem 1/5