11.12.(ü) 2.7 X 1.5 X 2.1The product of two rational number isFind the other.From a rope of the length 40m, a marHow piany pieces can be cut if each p!For x ,y and z =13Find the value of the expression:(x-y) -- z and x-(y-z). Are they equal.***********

11.12.(ü) 2.7 X 1.5 X 2.1The product of two rational number isFind th

1.	11.12.(ü) 2.7 X 1.5 X 2.1The product of two rational number isFind the other.From a rope of the length 40m, a marHow piany pieces can be cut if each p!For x ,y and z =13Find the value of the expression:(x-y) -- z and x-(y-z). Are they equal.***********
Answer» x=1/8, y=-8/6, z= 7/20; ( x-y)- z = (1/8-(-8/5))-7/20= (1/8+8/5)-7/20=5-7/20=100-8/20=92/8 = 11. 5, x-(y-z)=1/8-(--8/6-7/20)= 1/8+8/6+7/20=1/6+7/20= 20+42/20=62/20=3.1