Răspuns:
a)6/7
b)36/3
c)48/4
Explicație pas cu pas:
a) 15/7+23/7+4/7=6/7
b)17/3+6/9+17/3=
17+17/3+6/9=
17+17/3+2/3=
34/3+2/3=
34+2/3= 36/3
c)29/4+14/8+9/4+3/4=
29+9+3/4+14/8=
41/4+14/8=
41/4+7/4=48/4
