Răspunsuri

2014-03-26T08:41:23+02:00
3\4=5/4-2/4 , 2/5=6/5-4/5 ,   3/8=5/8-2/8 ,   9/9=1,  13/11=25/11-12/11
5 4 5
2014-03-26T09:56:06+02:00
3/4=1/4+2/4
2/5=1/5+1/5
3/8=2/8+1/8
9/9=5/9+4/9
13/11=10/11+3/11
4 4 4