17,24+(7,9-9,14) 24,16-(3,9-14,74) -1,8+(-3 1/7-5,2) -(9 4/13+3 5/26)+6 4/13 -0,23+(5,3-6,77) -19,,69-3,32) 8 17/39-(7 1/2-4 22/39) 0,4+(4,8-6 1/8) 0,7+(5,8-6 1/8) -1,23+(-2,56+12,79) !

1) 17,24+(7,9-9,14)=17,24+(-1,24)=16
2) 24,16-(3,9-14,74)=24,16-(-10,84)=35
3) -1,8+(-3.1/7-5,2)=-1,8+(-3.1/7-5.1/5)= -1,8+(-3.5/35-5.7/35)=-1,8+(-8.12/35)= -1.4/5-8.12/35=-1.28/35-8.12/35=-9.40/35= -10.5/35=-10.1/7