1) -5;
-1 > -5; 0 > -5; 15 > -5; 21 > -5; 101 > -5;
2) -7,8;
-5 > -7,8; -4 > -7,8; 0 > -7,8; 7 > -7,8; 10,5 > -7,8;
3) -10 2/3.
-10 > -10 2/3; -1 > -10 2/3; 0 > -10 2/3; 10 > -10 2/3; 100 > -10 2/3;
