-(2½-1⅓)+3,5-2⅖= -(5/2-4/3)+35/10-12/5=-(15/6-8/6)+35/10-24/10= =-7/6+11/10=-70/60+66/60=-4/60=-1/15
4⅓-7,5-(-2½+5,2)=13/3-75/10-(-5/2+52/10)=130/30-225/30-(-25/10+52/10)=
= -95/30+27/10=-95/30+81/30=-14/30=-7/15
-(2 1/2-1 1/3)+3,5-2 2/5= -2/30
4 1/3-7,5-(-2 1/2+5,2)= - 10 13/15
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-(2½-1⅓)+3,5-2⅖= -(5/2-4/3)+35/10-12/5=-(15/6-8/6)+35/10-24/10= =-7/6+11/10=-70/60+66/60=-4/60=-1/15
4⅓-7,5-(-2½+5,2)=13/3-75/10-(-5/2+52/10)=130/30-225/30-(-25/10+52/10)=
= -95/30+27/10=-95/30+81/30=-14/30=-7/15
-(2 1/2-1 1/3)+3,5-2 2/5= -2/30
4 1/3-7,5-(-2 1/2+5,2)= - 10 13/15