6.3E-multiply and divide positive rational numbers

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What is a positive rational number?

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A positive rational number is a number that can be expressed as the quotient of two integers, where the numerator is a positive integer and the denominator is a non-zero integer.

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How do you multiply two positive rational numbers?

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To multiply two positive rational numbers, multiply their numerators together to get the new numerator, and multiply their denominators together to get the new denominator. Simplify if necessary.

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How do you divide two positive rational numbers?

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To divide two positive rational numbers, multiply the first number by the reciprocal of the second number. This means flipping the second number's numerator and denominator and then multiplying.

Front

What is the formula to calculate the cost of an item based on its price per pound and weight?

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Cost = Price per pound × Weight in pounds.

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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 sum over the original denominator.

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What is the process to find the total earnings based on hourly wage and hours worked?

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Total earnings = Hourly wage × Hours worked.

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How do you calculate a fraction of a quantity?

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To calculate a fraction of a quantity, multiply the quantity by the numerator of the fraction and then divide by the denominator.

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What is the significance of place value in numerical answers?

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Place value determines the value of a digit based on its position in a number, which is crucial for accuracy in calculations and answers.

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How do you determine the total time taken by a smaller team if it is 1.25 times longer than a larger team?

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Total time = Time taken by larger team × 1.25.

Front

What is the relationship between ounces and pounds in terms of conversion?

Back

There are 16 ounces in 1 pound.