Multiplication and Division Rational Numbers Word Problems

Front

What is a rational number?

Back

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

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together. Simplify the resulting fraction if possible.

Front

What is the process for dividing rational numbers?

Back

To divide two rational numbers, multiply the first rational number by the reciprocal of the second rational number.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the formula for calculating the total cost when given a unit price and quantity?

Back

Total Cost = Unit Price × Quantity.

Front

How do you calculate the average miles per gallon (MPG) from total miles driven and gallons used?

Back

Average MPG = Total Miles Driven ÷ Gallons Used.

Front

What is the significance of negative numbers in financial contexts?

Back

Negative numbers in financial contexts typically represent debt or loss.

Front

How do you find a fraction of a whole number?

Back

To find a fraction of a whole number, multiply the whole number by the numerator of the fraction and then divide by the denominator.

Front

What is the relationship between multiplication and division?

Back

Multiplication is the inverse operation of division; dividing a number by another is the same as multiplying by its reciprocal.

Front

How do you solve a word problem involving multiplication of rational numbers?

Back

Identify the quantities involved, determine the operation needed (multiplication), and apply the multiplication of the rational numbers.