Question

Your puppy weighed 2 1/2 lb last week. This week it weighs 7 1/4lb. How much weight has the puppy gained? A) 9 3/4 B) 3/4 C) 4 3/4 D) 7 1/2

Answer 1

The answer to your question is C)
`4 (3)/(4)`

7 - 2 = 5. Then you're left with
`(1)/(4) - (2)/(4)`, which is
`(3)/(4)`.

Answer 2

Hello!

You have to subtract 7 1/4 and 2 1/2. First change both to a common denominator to make it easier.

Common denominator: 4


`2 (1)/(2) = 2 (2)/(4)`


`7(1)/(4) = 7(1)/(4)`


`7 (1)/(4) - 2 (2)/(4) = 6(5)/(4) - 2 (2)/(4) = 4 (3)/(4)`

Answer ⇒
`4 (3)/(4)`