Question

Is 2 by 2=4 rational or inrational and why

Answer 1

Answer: Rational number.

Explanation:

Rational numbers:

Any number which can be expressed in the form of p/q.

Where q is not equal to Zero.

p,q are integers.

Here in 2/4 ,

p=2

q=4

Answer 2

Answer: Rational

Explanation:

A rational number is an integer divided by an integer where the result is a terminating or repeating decimal.

2 x 2 = 4 --> 4 is terminating so it is a rational number.

If you are in a higher level math class, the reason is:

Rationals are CLOSED over multiplication.