Question

Numarul b=1,25:(4/5)la puterea -2 + 1,(6)+ 0,1(6)

Answer 1

1,(6) =(16-1)/9=15/9=5/3
 0,1(6) =(16-1)/90=15/90=1/6

b=1,25:(4/5)⁻² + 1,(6)+ 0,1(6) =
=125/100 : 1/(4/5)² + 5/3+1/6 =
=5/4 : 25/16 + 5/3+1/6 =
=5/4 x 16/25 + 5/3+1/6 =
=4/5+5/3+1/6=
=(24+50+5)/30=
=79/30