Question

Which of the following are rational numbers {7,-5,2/3,5.79,,√13,√-4}

Answer 1

7, -5, 2/3, 5.79

Explanation:

rational numbers are numbers you can put in fraction form.
`√(13)` is not a perfect square, therefore you cannot put it in fraction form.
`√(-4)` is an imaginary number. Rational numbers are in the Real Numbers category, so it is not a rational number.