7/30
1) To find out that, we need to subtract 3/5 from 5/6
2) Since the denominators are not the same, then we have to proceed with taking the LCM of (6,5) decomposing it by prime factors.
2.2) Now with the new denominator: 30 we can write out:
[tex]\frac{30\colon6\times5)}{30}-\frac{(30\colon5\times3)}{30}=\frac{25}{30}-\frac{18}{30}=\frac{7}{30}[/tex]
Then Jermaine drank 7/30 of the water
