Answer:

Step-by-step explanation:
Problems like this require that you recognize that the denominator of the right term is a factor of the denominator of the left term. That is, you're supposed to know how to recognize and factor the difference of two squares.

Answer:
Answer: Natural Numbers count physical things. They can't be negative.
The third option is correct because its fractions and decimals.
Step-by-step explanation:
Hope this helps!