Applying Rational Number Operations

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 add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the process for subtracting rational numbers?

Back

To subtract rational numbers, find a common denominator, convert the fractions, and then subtract the numerators.

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply the numerators together and the denominators together.

Front

What is the rule for dividing rational numbers?

Back

To divide by a rational number, multiply by its reciprocal (flip the second fraction and multiply).

Front

Calculate: 2/3 + 1/6.

Back

The answer is 5/6.

Front

Calculate: 5/8 - 1/4.

Back

The answer is 3/8.

Front

If you have $50 and spend $20, what is your new balance?

Back

Your new balance is $30.

Front

If you deposit $100 and withdraw $25, what is your new balance?

Back

Your new balance is $75.

Front

What is the change received from a $20 bill after buying an item for $15.50?

Back

The change received is $4.50.