the numerater of a fraction is 4 less than the denominator.if 1 is added to both its numerator and denaminator,it becomes 1/2.find the fraction.
Answers
Answered by
6
hi there,
let x be the denominator.
therefore the fraction=x-4/x
when 1 is added to numerator and denominator=x-3/x+1=1/2
=2x-6=x+1
x=1+6=7
therefore the fraction=-7-4/-7=3/7
i hope this helps u....
let x be the denominator.
therefore the fraction=x-4/x
when 1 is added to numerator and denominator=x-3/x+1=1/2
=2x-6=x+1
x=1+6=7
therefore the fraction=-7-4/-7=3/7
i hope this helps u....
praneethg1818:
x-4
hmmm
which answer
pahi took numerator as 4-x
its actually x-4
ok now
the answer is same
no
yy?
ur ans is 7/1 and mine 3/7
Answered by
3
let the denominator = x.
and the numerator = x-4
∴ A.T.Q
(x-4)/x=1/2
if 1 is added to both the numerator and denominator then,
(x-4+1)/x+1=1/2
⇒(x-3)/x+1=1/2
⇒2(x-3)=1(x+1)-----------by cross multiplying .
⇒2x-6=x+1
⇒2x-x=6+1
⇒x=7
∴ the value is 7/1
∴ the fraction is (7-4)/7
=3/7.
therefore the fraction is 3/7.
i hope that this will help u......^_^
and the numerator = x-4
∴ A.T.Q
(x-4)/x=1/2
if 1 is added to both the numerator and denominator then,
(x-4+1)/x+1=1/2
⇒(x-3)/x+1=1/2
⇒2(x-3)=1(x+1)-----------by cross multiplying .
⇒2x-6=x+1
⇒2x-x=6+1
⇒x=7
∴ the value is 7/1
∴ the fraction is (7-4)/7
=3/7.
therefore the fraction is 3/7.
i hope that this will help u......^_^
huh?
its x-4
ya becoz question says that 4 less than the denominator
so???
so the numerator will be 4 less than the denominator
i think so
yes but ur ans is diff
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