Question

express as ration number 0.4
i need answer 4/9​

Answer 1

Answer:

Let x be 0.4 bar x = 0.4 bar

Let x be 0.4 bar x = 0.4 bar(1) Multiplying both sides by 10,

Let x be 0.4 bar x = 0.4 bar(1) Multiplying both sides by 10, we get 10x = 4.4 bar

Let x be 0.4 bar x = 0.4 bar(1) Multiplying both sides by 10, we get 10x = 4.4 bar (2) Subtracting (1) from (2),

Let x be 0.4 bar x = 0.4 bar(1) Multiplying both sides by 10, we get 10x = 4.4 bar (2) Subtracting (1) from (2), we get 10x – x = 4.4 bar - 0.4 bar 9x = 4 x = 4/9

Let x be 0.4 bar x = 0.4 bar(1) Multiplying both sides by 10, we get 10x = 4.4 bar (2) Subtracting (1) from (2), we get 10x – x = 4.4 bar - 0.4 bar 9x = 4 x = 4/9 Thus, simplest form of 0.4 bar as a rational number is 4/9.

Answer 2

hope this helps you

this is recurring decimal expansion