To simplify the expression (-34,5).11/25-65,5.11/25, we can first convert the mixed numbers into improper fractions.

(-34,5) = -34 + 5/10 = -34 + 1/2 = -68/2 + 1/2 = -67/2

(65,5) = 65 + 5/10 = 65 + 1/2 = 130/2 + 1/2 = 131/2

Now we can substitute these values into the expression:

(-67/2).11/25 - (131/2).11/25

To multiply fractions, we multiply the numerators and denominators:

= (-67/2 * 11/25) - (131/2 * 11/25)

= (-737/50) - (1441/50)

To subtract fractions, we need a common denominator:

= (-737/50) - (1441/50)

= (-737 - 1441)/50

= -2178/50

Now we can simplify the fraction:

= -109/25