1) 2,75:1,1=2,5
2) 2,5+3 1/3=2 1/2+3 1/3=2 3/6 + 3 2/6=5 5/6=35/6
3) 0,4*(- 3 1/3)= - 2/5 * 10/3= - 4/3= - 1 1/3
4) 2,5 - ( -1 1/3)=2 1/2 + 1 1/3=2 3/6 + 1 2/6=3 5/6=23/6
5) 35/6 : 23/6=35/6 * 6/23=35/23=1 12/23
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1) 2,75:1,1=2,5
2) 2,5+3 1/3=2 1/2+3 1/3=2 3/6 + 3 2/6=5 5/6=35/6
3) 0,4*(- 3 1/3)= - 2/5 * 10/3= - 4/3= - 1 1/3
4) 2,5 - ( -1 1/3)=2 1/2 + 1 1/3=2 3/6 + 1 2/6=3 5/6=23/6
5) 35/6 : 23/6=35/6 * 6/23=35/23=1 12/23