C6 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 find the average of a set of rational numbers?

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To find the average, add all the numbers together and then divide by the total count of the numbers.

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What is the formula for finding the cost per item?

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The formula for finding the cost per item is: Cost per item = Total cost / Number of items.

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If a ticket costs $50, how much do 4 tickets cost?

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4 tickets cost: 4 x $50 = $200.

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What is a fraction?

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A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

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