Question

Is there more than 1 method to add or subtract rational numbers? If yes, then what are they? Useless answers will be reported and I will waste their one question too :) The correct and best answer will be marked as brainliest....​So please post correct answers..

Answer 1

Answer:

Rules for Adding and Subtracting Rational Numbers

The sum has the same sign as the addends. To add rational numbers with different signs, subtract the lesser absolute value from the greater absolute value. To subtract a rational number, add its additive inverse.

Answer 2

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A rational expression is a ratio of two polynomials. To add or subtract two rational expressions with the same denominator, we simply add or subtract the numerators and write the result over the common denominator. When the denominators are not the same, we must manipulate them so that they become the same.

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thanks sis for thanking my answers