Question

0.6+0.7bar+0.47bar=____?​

Answer 1

Answer:  1.852525bar

Step-by-step explanation:

$0.6+0.7bar+0.47bar$

convert 0.7bar in rational form

$x=0.777....$        ------------> (1.)

$10x=7.777....$       ---------> (2.)

subtracting (1.) from (2.)

$9x=7$

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

convert 0.47bar in rational form

$y=0.4747.....$         ------------> (3.)

$100y=47.4747....$     ---------> (4.)

subtracting (3.) from (4.)

$99y=47$

$y=\frac{47}{99}$

adding 0.6 , x and y:

$0.6+\frac{7}{9} +\frac{47}{99} \\\\\frac{6}{10} +\frac{7}{9} +\frac{47}{99}\\\\\frac{3}{5} +\frac{7}{9} +\frac{47}{99}\\\\\frac{297+385+235}{495}\\\\\frac{917}{495}$

or 1.852525bar