(2 3/35-1/2)•(8/45-19/45)

To simplify the given expression:

(2 3/35 - 1/2) • (8/45 - 19/45)

First, let's convert the mixed numbers to improper fractions:

2 3/35 = 70/35 + 3/35 = 73/35 1/2 = 17/35

Now, substitute these values back into the expression:

(73/35 - 17/35) • (8/45 - 19/45) = (56/35) • (-11/45)

Next, multiply the fractions:

(56/35) • (-11/45) = - (56 * 11) / (35 * 45) = -616 / 1575

Therefore, the final simplified answer is -616/1575.