Question

Find the missing numerators in each of the following fractions: a. 5⁄6 = ?⁄12 b. 2⁄4 = ?⁄36 c. 2⁄5 = ?⁄20 d. 4⁄25 = ?⁄100

Answer 1

A. 10
Multiply numerator and denominator by 2. So 6(2)=12 and 5(2)=10
B. 18
Multiply numerator and denominator by 9. So 4(9)=36 and 2(9)=18
C. 8
Multiply numerator and denominator by 4. So 5(4)=20 and 2(4)=8
D. 16
Multiply numerator and denominator by 4. So 25(4)=100 and 4(4)=16

Answer 2

To find: Missing Numerators.

let the missing variable in each part be x.

A).

`(5)/(6)=(x)/(12)`

`(5)/(6)*12=x`

`x=10`

Thus, Missing Numerator in this part is 10.

B).

`(2)/(4)=(x)/(36)`

`(2)/(4)*36=x`

`x=18`

Thus, Missing Numerator in this part is 18.

C).

`(2)/(5)=(x)/(20)`

`(2)/(5)*20=x`

`x=8`

Thus, Missing Numerator in this part is 8.

D).

`(4)/(25)=(x)/(100)`

`(4)/(25)*100=x`

`x=16`

Thus, Missing Numerator in this part is 16.