1) |1,5|+|8| = |1,5+8| = 9,5
2) |7|+ |-5/9| = 7 5/9;
|7-5/9| = 6 4/9;
Знак больше, ">"
3) |-1 3/5|+|-4 1/6|=1 3/5+4 1/6=5 23/30;
|4 1/6+1 3/5| = 5 23/30;
Знак равно "="
4) |2 3/8|+|-0,8|=2 3/8+4/5=2 47/40=3 7/40
|2 3/8-0,8|=2 3/8-4/5=1 23/40
Знак больше ">"