Topic 4.5: Write and Solve Equations with 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 convert a mixed number to an improper fraction?

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To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.

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What is the process to solve an equation with rational numbers?

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To solve an equation with rational numbers, isolate the variable on one side of the equation by performing inverse operations, ensuring to maintain the equality.

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How do you subtract fractions with different denominators?

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To subtract fractions with different denominators, find a common denominator, convert the fractions, and then subtract the numerators.

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How do you multiply two fractions?

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To multiply two fractions, multiply the numerators together and the denominators together.

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What is the definition of a variable in an equation?

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A variable is a symbol used to represent an unknown value in an equation.

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