Question

Convert 0.687 into p upon q form.bar is on 7. Hurr

Answer 1

HEY MATE HERE IS YOUR ANSWER

$0.687 \: bar \: on \: 7$
$let \: 0.687 \: as \: = \frac{p}{q}$
Multiply both sides by 100

100×0.687=

Its give

$68.7 - - - - - - (1)$

Then,

Multiply again both sides by 1000

So it is

1000 × 0.687 =

Its gives

$= > 687 - - - - - - - - (2)$

Subtract 2 from 1

$1000 - 100( \frac{p}{q} ) = 687 - 68.7$

$\frac{p}{q} = \frac{500}{900}$

= 5/9

Hope it will help you

Answer 2

let x=o.68777777..... eq.1

period=7

periodicity=1

multiply '10' on both sides

10 x X=10 x 0.6877777....

10X = 6.87777...  eq2

eq 2-1

 10X=6.87777...

(-) X=0.687777..

_____________

9X=6.2

___________-

X=6.2 x 10 upon 9 x 10

=62 upon 90

this is your final answer