найдите сумму
1) -6,5+(-7,3)+7.3+3
2)-3 6/7+(-1 1/7)+5+(-7)
3)4,8+(-5,8)+5,2+(-4,2)
4)8 9/11+(-7 2/11)+(-9 9/11)+1 2/11
1) -6,5+(-7,3)+7.3+3
2)-3 6/7+(-1 1/7)+5+(-7)
3)4,8+(-5,8)+5,2+(-4,2)
4)8 9/11+(-7 2/11)+(-9 9/11)+1 2/11
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Answers & Comments
2) -3 6/7 +(-11/7)+5+(-7)= -7 2/7
3)4,8+(-5,8)+5,2+(-4,2)=0
4) 8 9/11+(-7 2/11)+(-9 9/11)+1 2/11= -7