Решите!!!
-9/14+(-13/21)=
-1/5+(-1 11/6)=
-5/6=(-2/3)=
-7 14/33=(-8 1/11)=
-0,3+(-0,15)=
-9/14+(-13/21)=-27/42-26/42=-53/42=-1 11/42;///-1/5+(-1 11/6)=-1/5-17/6=-6/30-85/30=-91/30=-3 1/30;////-5/6+(-2/3)=-5/6-4/6=-9/6=-1 1/2;//.-7 14/33+(-8 1/11)=-7 14/33-8 3/33=-15 17/33;////-0,3+(-0,15)=-0,3-0,15=-0,45
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