Question

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Answer 1

ANSWER

first change this into fraction form

multiply n = 0.6666........by 10 ( eq 1 )

we get 10 n = 6.66666 ( eq 2 )

sub 1 from 2

n = 6/9

we get

also

0.7............= 7/9

0.8...........= 8/9

so value is given by 21/9

Answer 2

Answer:

For 0.6

Let x be 0.666

Multiplying 10 to both sides

10x = 6.666

Subtracting the equations

9x = 6

$x = \frac{2}{3}$

For 0.7

Let x be 0.777

Multiplying 10 to both sides

10x = 7.777

Subtracting the equations

9x = 7

$x = \frac{7}{9}$

For 0.8

Let x be 0.888

Multiplying 10 to both sides

10x = 8.888

Subtracting the equations

9x = 8

$x = \frac{8}{9}$

Value of the question will be - - - -

$\frac{2}{3} + \frac{7}{9} + \frac{8}{9}$

$\frac{6 + 7 + 8}{9}$

$\frac{21}{9}$

Answer is 7/3.