Operations with Rational Numbers

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.

Tags

CCSS.5.NBT.A.2

Front

What is the result of dividing two negative numbers?

Back

The result is a positive number.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

What is the result of multiplying two negative numbers?

Back

The result is a positive number.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

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

Back

The result is a negative number.

Tags

CCSS.3.OA.D.9

Front

How do you divide fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal of the second fraction.

Tags

CCSS.6.NS.A.1

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator.

Front

What is the process to add or subtract rational numbers?

Back

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

Tags

CCSS.7.NS.A.1C

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

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 (-25) ÷ (-5)?

Back

5

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B