Răspuns :
1/3=0,(3)
1/2=0,5
1/3<n<1/2
0,(3)<n<0,5
n∈{0,34; 0,35; 0,36;.......; 0,49}
sau
1/3=2/6=6/18
1/2=3/6=9/18
1/3<n<1/2 sau
6/18<n<9/18
n∈{7/18, 8/18}
sau
1/3=8/24
1/2=12/24
8/24<n<12/24
n∈{9/24, 10/24, 11/24}
1/2=0,5
1/3<n<1/2
0,(3)<n<0,5
n∈{0,34; 0,35; 0,36;.......; 0,49}
sau
1/3=2/6=6/18
1/2=3/6=9/18
1/3<n<1/2 sau
6/18<n<9/18
n∈{7/18, 8/18}
sau
1/3=8/24
1/2=12/24
8/24<n<12/24
n∈{9/24, 10/24, 11/24}