Question

I'm having trouble figuring out how to get the answer, 10/7, which is listed in the answer key of some practice problems. Could anyone explain how to get that answer? I believe you should multiple everything by the LCD, 30 but I'm lost past that


`(a)/(3) - (a)/(10) = (1)/(3)`

Answer 1

Okay, so you multiply every fraction to make 30, so it should look like this:

`(10a)/(30)` -
`(3a)/(30)` =
`(10)/(30)` it should equal
`(7a)/(30)` =