Add/Subtract/Multiply/Divide Rational Numbers Practice

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

What is the total cost of 15 fruit cups at $0.75 each?

Back

$11.25 (15 x $0.75 = $11.25).

Front

If a recipe calls for 1 ⅓ cups of walnuts, how much is half of that?

Back

2/3 cup (1 ⅓ divided by 2 = 2/3).

Front

What is -23 - 8.95?

Back

-31.95.

Front

What is -3 ¼ + ½?

Back

-2 ¾.

Front

What is the product of -5/6 and -3/4?

Back

5/8 (multiply numerators and denominators: 15/24, then reduce to 5/8).