1.3(-3.2)= -4.16

(-4/7)*(2 1/3) =(-4/7)*(7/3)=-4/3=- 1 [tex]\frac{1}{3}[/tex]

-0.52:1.3 =-5.2:3=0.4

(-3 4/15):(-5 3/5)= [tex]\frac{-49}{15}[/tex]:([tex]\frac{-28}{5}[/tex])=[tex]\frac{49}{15}[/tex]*[tex]\frac{5}{28}[/tex]=7/12= 0 [tex]\frac{7}{12}[/tex]

Пошаговое объяснение:

1,3 * (-3,2) = -4,16

-4/7 * 2. 1/3 = -4/7 * 7/3 = -4/1 * 1/3 = -4/3 =

-1. 1/3

-0,52 : 1,3 = -0,4

-3. 4/15 : (-5. 3/5) = -49/15 : (-28/5) = -49/15 * (-5/28) = -7/3 * (-1/4) = 7/12