Răspuns:
Buna
Explicație pas cu pas:
1) a= 1/2+1/2= 2/2= 1
2) b= 1/5+3/5= 4/5
3) c= 3/6+2/6= 5/6
4) -a= 2/9-7/9= -5/9 --> a= 5/9
5) -b= 1/6-5/6= -4/6 --> b= 4/6
6) -c= 1/8-4/8= -3/8 --> c= 3/8
7) a= 2/2-1/2= 1/2
8) b= 4/5-3/5= 1/5
9) -c= 2/8-1/8-7/8= -6/8 --> c= 6/8
Sper ca ti-am fost de folos!
