Răspunsuri

2014-05-25T20:09:37+03:00
2/15+1/35= 17/105
2/3:1/6= 2/3 * 6/1 = 4
28/98.21/81= 29/378
1/3+1/3=2/3
12/18+1= 5/3
6-54/24= 15/4
-3/4+5/6= 1/12
(0,8)² = 0.64