А) -1/2 : 2 = б) -1/3 : 2 = в) -2/5 : (-3) = г) 3/7 : (-9) = е) 15/32 : (-20) = д) -12/13...

Question

А) -1/2 : 2 =
б) -1/3 : 2 =
в) -2/5 : (-3) =
г) 3/7 : (-9) =
е) 15/32 : (-20) =
д) -12/13 : 24 =
Помогите пожалуйста !!!!!!!!!

Answer 1

-1/3 : 2/1 = -1/3 * 1/2 = -1/6 
-2/5 : (-3)/1 = -2/5 * 1/(-3) = 2/15 
3/7 : (-9)/1 = 3/7 * 1/(-9) = -3/63 = -1/21
15/32 : (-20)/1 = 15/32 * 1/(-20) = -15/640 = -3/128
-12/14 : 24/1 = -12/14 * 1/24 = -12/336 = -1/28

Comments

а как написать первый примимер ????

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пример7?

Answer 2

а) -1/2 : 2 =-1/4
б) -1/3 : 2 =-1/6
в) -2/5 : (-3) =2/15
г) 3/7 : (-9) =-1/(3*7)=-1/21
е) 15/32 : (-20) =-3/(4*32)=-3/128
д) -12/13 : 24 =-2/(4*13)=-2/52