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2)-0,6
3)5⅓
4)⅝
5)(-3/16)
15. -5+(-9)=-14
-5*(-9)=45
-5-(-9)=4
-5:(-(-9))=-5*1/9=-5/9
-9-(-5)=-4
-(-5)*(-9)=-45
-5+(-(-9))=4
-(-9):(-(-5))=9:5=9/5
jak tak to;
a= -5 b= -9 *-razy
a+b
(-5)+(-9)= -5-9= -14
b-a
(-9)-(-5)+-9+5= -4
a*b
(-5)*(-9)= -45
(-a)*b
[-(-5)]*(-9)= -45
a-b
(-5)-(-9)=-5+9= 4
a+(-b)
(-5)+(-9)= -5-9=-14
a:(-b)
(-5):[-(-9)]= -45
(-b):(-a)
[-(-9)]:[-(-5)]=1,8
chyba nie jestem dokładnie pewna tych dwóch ostatnich...
prosze naj:))