10 5/22-5 3/11-13 2/11+3 7/22-4 6/11+9/22=10 5/22-5 6/22-13 4/22+3 7/22-4 12/22+9/22=10-5-13+3-4+(5/22-6/22-4/22+7/22-12/22+9/22)= - 9+( - 1/22)= - 9- 1/22= - 9 1/22
13,23-6,8+5,9+6,8-14,37-13,23=5,9-14,37= - 8,47
260,
8 4/5-a+b+1 7/15+a-4.3-8.8=8 12/15+1 7/15+b-13.1=10 4/15-13 1/10+b=10 8/30-13 3/30+b= - 2 25/30+b= - 2 5/6+b
при b=2 5/6
-2 5/6+2 5/6=0
при b= - 1
-2 5/6-1= - 3 5/6