(2целых4/5-2целых3/8)*16=

To solve this expression, we need to first simplify the mixed numbers:

2ц4/5 = 10/5 + 4/5 = 14/5
2ц3/8 = 16/8 + 3/8 = 19/8

Now we can substitute these values into the expression:

(14/5 - 19/8) * 16

To simplify the expression further, we need to find a common denominator for 5 and 8, which is 40:

(14/5 * 8/8 - 19/8 * 5/5) * 16
(112/40 - 95/40) * 16
17/40 * 16

Finally, we can multiply the fraction by the whole number:

17/40 * 16 = 6.8

Therefore, (2ц4/5-2ц3/8)*16 = 6.8.