Asked by Deron
The numerator of a fraction is 2 less than its denominator. If 3 is substracted from the numerator and from the denominator, the new fraction obtainded is 3/4. Find the fraction
Answers
Answered by
Bosnian
n = numerator
d = denominator
n = d - 2
( n - 3 ) / ( d - 3 ) = 3 / 4
( d - 2 - 3 ) / ( d - 3 ) = 3 / 4
( d - 5 ) / ( d - 3 ) = 3 / 4 Multiply both sides by 4
4 ( d - 5 ) / ( d - 3 ) = ( 3 / 4 ) *4
4 ( d - 5 ) / ( d - 3 ) = 3 Multiply both sides by ( d - 3 )
4 ( d - 5 ) ( d - 3 ) / ( d - 3 ) = 3 ( d - 3 )
4 ( d - 5 ) = 3 ( d - 3 )
4 d - 20 = 3 d - 9 Subtract 3 d to both sides
4 d - 20 - 3 d = 3 d - 9 - 3 d
d - 20 = - 9 Add 20 to both sides
d - 20 + 20 = - 9 + 20
d = 11
n = d - 2 = 9
Numerator = 9
Denumerator = 11
d = denominator
n = d - 2
( n - 3 ) / ( d - 3 ) = 3 / 4
( d - 2 - 3 ) / ( d - 3 ) = 3 / 4
( d - 5 ) / ( d - 3 ) = 3 / 4 Multiply both sides by 4
4 ( d - 5 ) / ( d - 3 ) = ( 3 / 4 ) *4
4 ( d - 5 ) / ( d - 3 ) = 3 Multiply both sides by ( d - 3 )
4 ( d - 5 ) ( d - 3 ) / ( d - 3 ) = 3 ( d - 3 )
4 ( d - 5 ) = 3 ( d - 3 )
4 d - 20 = 3 d - 9 Subtract 3 d to both sides
4 d - 20 - 3 d = 3 d - 9 - 3 d
d - 20 = - 9 Add 20 to both sides
d - 20 + 20 = - 9 + 20
d = 11
n = d - 2 = 9
Numerator = 9
Denumerator = 11
Answered by
Steve
I know what an <u>e</u>numerator does, but I'm not sure what a <u>de</u>numerator does . . . eliminate stuff?
Answered by
Bosnian
Steve,
I am from Sarajevo, Bosnia and Herzegovina.
English is foreign language for me.
Numerator is typing mistake, so what?
I am from Sarajevo, Bosnia and Herzegovina.
English is foreign language for me.
Numerator is typing mistake, so what?
Answered by
Abhi
I hav qstion i need answer..
If the numerator of a fractionis multiplied by 4 and the denominatoris reduced by 2,the result is 2.if the numeratorof the fraction is increase by 15 and 2 subtracted from thedouble of the denominator the result is 9/7, find the fraction
If the numerator of a fractionis multiplied by 4 and the denominatoris reduced by 2,the result is 2.if the numeratorof the fraction is increase by 15 and 2 subtracted from thedouble of the denominator the result is 9/7, find the fraction
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