а) 159+(-753)=
б) 1,11+(-6,3)
в)-5/18+7/9
г) 9/13+(-4)
д) 7/11/19+(-2/3/38)
б) 1,11+(-6,3)
в)-5/18+7/9
г) 9/13+(-4)
д) 7/11/19+(-2/3/38)
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Answers & Comments
1,11+(-6,3)=1,11-6,3=-5,19
-5/18+7/9=-5/18+14/18=9/18=1/2=0,5
9/13+(-4)=9/13-4=9/19-3 13/13=-3 4/13
7 11/19+(-2 3/38)=7 11/19-2 3/38=7 22/38-2 3/38=5 19/38=5 1/2=5,5