A student clamied that the number -4 is not rational because it is not a ratio of two integers. Do you agree or disagree?

I agree.

Solution:Every single integer can be written as a fraction.Please remember that the set of integers includes negative numbers, zero, and positive numbers.In this case, we have a negative number (the minus sign in front of the number tells us it is negative).So, how can we write an integer as a fraction?Every integer can be written as a fraction with a denominator of 1.Therefore, the answer is:-4/1So, is 4 rational? Yes, because it can be written as a fraction.

Hope it helps.

Do comment if you have any query.