Question

Solve for x. Enter your answer below as a fraction in lowest terms, using the slash ( / ) as a fraction bar. Solve:

X - 3/8 = 3/20

Answer 1

x =
`(21)/(40)`

Explanation:

Given

x -
`(3)/(8)` =
`(3)/(20)`

Multiply through by 40 ( the LCM of 8 and 20 ) to clear the fractions

40x - 15 = 6 ( add 15 to both sides )

40x = 21 ( divide both sides by 40 )

x =
`(21)/(40)`

Answer 2

x=21/40

Explanation:

First get common denominators

3/8 *5 to top and bottom is now 15/40

3/20 *2 to top and bottom is now 6/40

isolate the X

x-15/40=6/40

+15/40 +15/40

x=21/40