Question

-8 1/6 +2 2/3, 4 4/9 + (-1 5/6), (-8 2/3) : (-1 4/9) ,-5 5/9:(5 5/6-10) / to kreska ułamkowa

Answer 1

-8 1/6 +2 2/3=
= -49/6 + 8/3 = 
= -49/6 + 16/6 = 
= -33/6 = 
= -5 i 1/2

4 4/9 + (-1 5/6) = 
= 40/9 - 11/6 = 
= 80/18 - 33/18 = 
= 47/18 = 
= 2 i 11/18

(-8 2/3) : (-1 4/9)  = 
= -26/3 : (-13/9) = 
= -26/3 * (-9/13) = 
= 6

-5 5/9:(5 5/6-10) =
= -50/9 : (35/6 - 10) = 
= -50/9 : (35/6 - 90/6) = 
= -50/9 : (-55/6) = 
= -50/9 * (-6/55) = 
= 20/33