Question

Pls help fast, everything is in the attached file

Answer 1

• 
  `(20)/(369)`

Explanation:

• 
  `( 3.4:1.8 - 1 (2)/(3) + (7)/(9) )/(0.918:0.51 + 0.45) =`
• 
  `((34)/(18)- (5)/(3)+(7)/(9) )/(18 +(45)/(100) ) =`
• 
  `((17)/(9)-(15)/(9)+(7)/(9))/(18+ (9)/(20) ) =`
• 
  `((17-15+7)/(9) )/((369)/(20) ) =`
• 
  `(9)/(9) } *(20)/(369) =`
• 
  `(20)/(369)`