17262728:(7381-726)

First compute the parentheses: 7381 − 726 = 6655.

Then evaluate the division:

• 17262728 ÷ 6655 = 2593 remainder 6313
• So 17262728/6655 = 2593 + 6313/6655
• gcd(6313,6655) = 1, so the fraction is already in lowest terms

Decimal approximation: ≈ 2593.94861

If you want it as a ratio (a:b), it is 17262728:6655 (already in lowest terms since gcd = 1).