Question

Помогите пожалуйста!!!

Answer 1

д) 13 1/2 - (y + 4 2/5) = 3 3/4             
     y+ 4 8/20= 13 10/20 - 3 15/20
     y+ 4 8/20= 9 15/20
     y= 9 15/20 - 4 8/20
      y= 5 7/20
4 2/5= 4 8/20     3 3/4= 3 15/20

e)14 7/12 - ( 7 3/5 - x)= 9 5/24
7 3/5 - x= 14 14/24 - 9 5/24
7 3/5 - x= 5 9/24 ( 5 3/8)
x= 7 24/40 - 5 15/40
x= 2 9/40
14 7/12= 14 14/24    7 3/5= 7 24/40     5 3/8=5 15/40

ж) ( х - 4 1/2) - 2 1/4= 9 5/24
     х - 4 1/2=9 5/24 + 2 6/24
х - 4 12/24= 11 11/24
х= 4 12/24 + 11 11/24
х= 15 23/24
2 1/4= 2 6/24    4 1/2= 4 12/24

з) ( z - 8 3/4) + 2 1/2 = 5 1/2
     z - 8 3/4 = 5 1/2 - 2 1/2
     z - 8 3/4 = 3
     z= 8 3/4+3
      z= 11 3/4