# Math Help - write an equivalent fraction with the given denominator.

1. ## write an equivalent fraction with the given denominator.

4/11= ?/22

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

2. 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 ?

3. 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?

4. Originally Posted by BeBeMala
44?
4*2 = 44??

5. 16

6. 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"

7. 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

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

you get that answer using both methods