Question

Amira has 3/4 of a bag of cat food. Her cat eats 3/8 of a bag per week.

How many weeks will the food last?

Answer 1

In order to subtract the numerators of a fraction, the denominators need to be equal. In order to do that, you need to multiply
`(3)/(4)` x
`(2)/(2)` to get
`(6)/(8)`. So now we can think of the problem "what times
`(3)/(8)` equals
`(6)/(8)`. So the answer is 2. The food will be up in 2 weeks.