Multiply and Divide Rational Numbers Flashcard

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

What does it mean to multiply rational numbers?

Back

Multiplying rational numbers involves multiplying the numerators together and the denominators together.

Front

What is the result of multiplying two negative rational numbers?

Back

The result is a positive rational number.

Front

What is the result of multiplying a positive rational number by a negative rational number?

Back

The result is a negative rational number.

Front

How do you divide rational numbers?

Back

To divide rational numbers, multiply by the reciprocal of the divisor.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by swapping its numerator and denominator.

Front

What is the overall change in a bank account after multiple withdrawals?

Back

The overall change is the total amount withdrawn, represented as a negative value.

Front

If Flora made 3 withdrawals of $75 each, what is the total amount withdrawn?

Back

Total amount withdrawn = 3 x $75 = $225.

Front

What is the result of 64 ÷ (-8)?

Back

The result is -8.

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.