(0,49:1,4-0,325)•0,8

To calculate this expression, we need to first perform the multiplication in the parentheses and then multiply the result by 0.8.

(0.49 - 1.4) • 0.325 = (-0.91) • 0.325 = -0.29575

Now, multiply the result by 0.8:

-0.29575 • 0.8 = -0.2366

Therefore, the final result of the expression (0.49 - 1.4) • 0.325 • 0.8 is approximately -0.2366.