1024:128•15:10=

To solve this equation, we can simplify the fractions first.

1024:128 can be simplified as 8:1 15:10 can be simplified as 3:2

Now we can multiply the simplified fractions:

8:1 • 3:2 = (8 x 3) : (1 x 2) = 24:2

Finally, we can simplify the fraction if needed:

24:2 can be simplified as 12:1

Therefore, 1024:128 • 15:10 = 12:1