Question

Hannah's water bottle had gallon of water. She drank 5 gallon. Which

equation shows the fraction of a gallon of water that is left in the bottle?

Answer 1

see below

Explanation:

The amount remaining is the difference between what she started with and what she drank:

7/8 -5/6 = amount remaining

The arithmetic can be carried out by expressing each fraction using a denominator of 24, the least common multiple of 6 and 8.

`(7\cdot 3)/(8\cdot 3)-(5\cdot 4)/(6\cdot 4) = \boxed{(21)/(24)-(20)/(24)=(1)/(24)}`