4.2 & 4.4 Retake Add Subtract Rational Numbers

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What is a rational number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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How do you add two negative rational numbers?

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To add two negative rational numbers, add their absolute values and keep the negative sign. For example, -2 + (-3) = -(2 + 3) = -5.

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How do you subtract a negative number from a positive number?

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Subtracting a negative number is the same as adding its absolute value. For example, 5 - (-3) = 5 + 3 = 8.

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How do you add mixed numbers?

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Convert mixed numbers to improper fractions, add them, and then convert back to a mixed number if necessary.

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What is the difference between a positive and a negative rational number?

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A positive rational number is greater than zero, while a negative rational number is less than zero.