What is the reciprocal of the number 2?
A. [tex]$2 / 1$[/tex]
B. [tex]$1 / 2$[/tex]
C. 22
D. [tex]$\sqrt{2}$[/tex]
Answer (2)
The reciprocal of the number 2 is 2 1 , which corresponds to option B in the list of choices. The reciprocal is calculated as 1 divided by the number. Therefore, the correct response to the question is B.
;
The problem asks for the reciprocal of 2.
The reciprocal of a number x is x 1 .
The reciprocal of 2 is 2 1 .
The answer is 2 1 .
Explanation
Understanding the Problem The question asks us to find the reciprocal of the number 2. The reciprocal of a number is simply 1 divided by that number.
Finding the Reciprocal To find the reciprocal of 2, we need to calculate 1/2 .
Identifying the Correct Option The reciprocal of 2 is 1/2 . Looking at the options, we see that option B matches our result.
Final Answer Therefore, the answer is B.
Examples
Understanding reciprocals is useful in many real-life situations. For example, if you want to share a pizza equally among a group of friends, the reciprocal helps you determine the fraction of the pizza each person gets. If there are 2 friends, each gets 2 1 of the pizza. Reciprocals are also used in calculating rates and proportions, such as converting speeds from miles per hour to hours per mile.
