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Answer:

Numbers 3, 4, and 5 are rational algebraic expressions, 1 and 2 aren't.

Encircle numbers 3, 4, and 5.

Explanation:

What is a rational expression?

For your convenience, we define a rational number as a number that is not equal to zero and is represented in the form p/q. To put it another way, a rational number is simply a fraction in which the numerator and denominator are both integers. 5/7, 4/9/ 1/ 2, 0/3, 0/6 are examples of rational numbers.

A rational expression, on the other hand, is an algebraic expression of the type f(x) / g(x) in which the numerator or denominator, or both the numerator and the numerator, are polynomials. 5/x - 2, 4/(x + 1), (x + 5)/5, (x²+ 5x + 4)/(x + 5), (x + 1)/(x + 2), (x² + x + 1)/2x, and so on are examples of rational expressions.

How to Simplify Rational Expressions?

The process of reducing a rational expression to its simplest form is known as rational expression simplification. In the same manner that numerical numbers or fractions are simplified, rational expressions are simplified as well.

We use the steps below to simplify any rational expressions:

• Factor the rational expression's denominator and numerator together. Keep in mind that each phrase should be written in standard form.

• By canceling out common factors in the numerator and denominator, the expression is reduced.

• In the numerator and denominator, rewrite the remaining factors.

To learn more about rational expressions, follow the link below

brainly.ph/question/5547204

I hope this helps!

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