Math, asked by gowthamkoparthp0g0l3, 1 year ago

write 0.3bar in p/q form

Answers

Answered by mysticd
2
Hi ,

Let x = 0.333... ---( 1 )

multiply both sides of equation ( 1 ) with 10,

we get

10x = 3.333....----( 2 )

subtract ( 1 ) from ( 2 ) , we get

9x = 3

x = 3/9

x = 1/3

Therefore ,

x = 0.333.... = 1/3 ( p/q form )

I hope this helps you.

:)

gowthamkoparthp0g0l3: why multiply with ten
Answered by tanuja2
4
let x=0.333......eqn(1)
periodicity =1 so multiply both sides with 10
10x=3.333.....eqn (2)
now,
substitute eqn 2-eqn 1
10x=3.333-x=0.333
=9x=3
x=3/9
x=1/3

gowthamkoparthp0g0l3: but why 10
tanuja2: because periodicity =1
gowthamkoparthp0g0l3: means
tanuja2: the no.of numbers which repeats after point
tanuja2: ex 3.454545 here periodicity is 2
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