Question

What must be added to -3/8 to get 5/16 ?

Answer 1

-3/8=5/16

put x after -3/8 to find 5/16

-3/8+x=5/16

find x

move -3/8 to the other side

sign changes from -3/8 to 3/8

-3/8+3/8+x=5/16-3/8

x=5/16-3/8

find the common denominator which is 16

multiply by 2 for -3/8

(-3)(2)=-6

(8)(2)=16

x= 5/16--6/16

negative sign and negative sign= +positive sign

x= 5/16+6/16=11/16

answer: x=11/16

Answer 2

`(11)/(16)`

Explanation:

`-(3)/(8)` + x =
`(5)/(16)`

x =
`(5)/(16)` - (
`-(3)/(8)` ) =
`(5)/(16)` +
`(3)/(8)` =
`(5 + 6)/(16)` =
`(11)/(16)`

x =
`(11)/(16)`