Question

10 exerciti cu adunari si scaderi ale fractiilor.dau coroana

Answer 1

5/6+1/6=1(6/6)
4/9-2/9=2/9
5/7+3/7=1 1/7
1 7/8-1 4/8=3/8
3/7+14/7=2
3/9-2/9-1/9=0
4/6+9/12=1 5/9
2 5/7-1 6/7=6/7
2/10+5/20=9/20
6/9-1/3-2/9-1/9=0