Is 1/2 a real and rational number?

2 Answers
Mar 8, 2018

Yes

Explanation:

Real numbers are numbers that can be placed on a number line and rational numbers are numbers that can be written as a fraction, #1/2# meets both of these conditions

Mar 8, 2018

Yes, It is.

Explanation:

#QQ# is the set of all numbers in the form #QQ={a/b/a,b in ZZ; and b!=0}#. As 1/2 is on this form, 1/2 is a rational number

By the other hand, #RR# is a superset containing #QQ#, it's say

#QQsubRR#, That means whichever element of #QQ# is also a element of #RR# and hence, 1/2 is also a real number