/ to kreska ułamkowa a * to mnożenie
2-1,8*(2/3-0,3)=
DAWAĆ NA DZISAJ BO MUSIAŁEM ZAZNACZYĆ NA JUTRO
2-18/10*(2/3-3/10)=
=2-9/5*(20/30-9/30)=
=2-9/5*21/30=
=2-189/150=
=300/150-189/150=
= 111/150=
=37/50
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2-18/10*(2/3-3/10)=
=2-9/5*(20/30-9/30)=
=2-9/5*21/30=
=2-189/150=
=300/150-189/150=
= 111/150=
=37/50