# write an equivalent fraction with the given denominator.

• Sep 12th 2008, 02:10 PM
BeBeMala
write an equivalent fraction with the given denominator.
4/11= ?/22

A)4
b)8
c)44
d)2
• Sep 12th 2008, 02:16 PM
Jhevon
Quote:

Originally Posted by BeBeMala
4/11= ?/22

A)4
b)8
c)44
d)2

multiply the original fraction by 2/2

then the denominator becomes 22 and the numerator becomes....?

alternatively: two fractions a/b and c/d are said to be equal if ad = bc

thus, 4/11 = ?/22 if 4(22) = 11(?) and you can solve for ?
• Sep 12th 2008, 02:22 PM
BeBeMala
Quote:

Originally Posted by Jhevon
multiply the original fraction by 2/2

then the denominator becomes 22 and the numerator becomes....?

alternatively: two fractions a/b and c/d are said to be equal if ad = bc

thus, 4/11 = ?/22 if 4(22) = 11(?) and you can solve for ?

44?
• Sep 12th 2008, 02:30 PM
Jhevon
Quote:

Originally Posted by BeBeMala
44?

4*2 = 44??
• Sep 12th 2008, 02:31 PM
BeBeMala
16
• Sep 12th 2008, 02:35 PM
Jhevon
Quote:

Originally Posted by BeBeMala
16

4*2 means 4 times 2, not $4^2$.

did you read my first post? i'm sure i said "multiply"
• Sep 12th 2008, 02:37 PM
BeBeMala
Quote:

Originally Posted by Jhevon
4*2 means 4 times 2, not $4^2$.

did you read my first post? i'm sure i said "multiply"

oh i'm so sorry i miss that.....8
• Sep 12th 2008, 02:46 PM
Jhevon
Quote:

Originally Posted by BeBeMala
oh i'm so sorry i miss that.....8

yes

you get that answer using both methods