Question

plz do it fast as soon as possible plz. Doo plz​

Answer 1

x=3/5

y=-6/9

z=2/10

To prove:

x+(y+z)=(x+y)+z

3/5 +(-6/9+2/10)=(3/5+-6/9)+2/10

3/5+( -6×10+2×9)/10=(3/5-2/3)+2/10

3/5 + (-60+18)/90= (9-10)/15+2/10

3/5-42/90= -1/15+1/5

(3×18-42)/90= (-1+3×1)/15

(54-42)/90 = (-1+3)/15

12/90= 2/15

2/15= 2/15

L.H.S= R.H.S