simplest form

(-2/9)-(-9/5)

To subtract these fractions, you need to find a common denominator.

The least common multiple of 9 and 5 is 45.

Converting the fractions to have a common denominator: (-2/9) becomes (-10/45) and (-9/5) becomes (-81/45).

Now, you can subtract the fractions: (-10/45) - (-81/45) = (-10 + 81)/45 = 71/45.

Therefore, the simplest form of the expression (-2/9) - (-9/5) is 71/45.