Question

[(1 supra 2 -1supra 5):1 supra 5 +2,75]•0,(3)+1,(6)

Answer 1

[(1/2 - 1/5) : 1/5 + 2,75] × 0,(3) + 1,(6) =

= [ (5/10 - 2/10) × 5 + 2,75]×3/9 +15/9=

= (3/10 × 5 + 2,75) × 1/3 + 5/3 =

= (3/2 + 2,75) × 1/3 + 5/3 =

= (1,5 + 2,75) × 1/3 + 5/3 =

= 4,25 × 1/3 + 5/3 =

= 4,25/3 + 5/3 =

= 9,25/3 =

= 925/300 =

= 3,0(83)