jen i need your help again how about 18;40

Divide both the numerator and the denominator by 2.

Divide the numerator and denominator by

2 and get:

18/40 = 9/20.

Sure, I'd be happy to help! However, it seems like you provided the time "18:40" without specifying the context or question related to it. Could you please provide more information or let me know what you need help with regarding this time?