Rational Number Operation Review

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 find the change when you pay with cash?

Back

To find the change, subtract the total cost from the amount paid.

Front

What is the result of -(-44)?

Back

The result is 44.

Front

How do you subtract a negative number?

Back

Subtracting a negative number is the same as adding its positive counterpart.

Front

What is the result of -23.4 - 3.4?

Back

The result is -26.8.

Front

How do you calculate net gain or loss in a sequence of gains and losses?

Back

Add all gains together and subtract all losses to find the net gain or loss.

Front

What is the result of 8 - 5 - 5?

Back

The result is -2.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the result of -2 ⅙ - (-1 ¾)?

Back

The result is -5/12.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.