BDE are the correct options
Option B: (b-a)/(b+a) is the correct answer
Step-by-step explanation:
The given expression is;

First of all we have to take LCM in both numerator and denominator
So,

The reciprocal of the denominator will be multiplied with the numerator for simplification
So,

Hence,
Option B: (b-a)/(b+a) is the correct answer
Keywords: Fractions, expressions
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For this case we can propose a rule of three:
bottle ------------>
minutes
x --------------------------------------> 1 minute
Where the variable "x" represents the number of bottles that can be filled in 1 minute.

Thus, William can fill
of a water bottle in 1 minute.
Answer:
William can fill
of a water bottle in 1 minute.