7th-MULTIPLYING AND DIVIDING 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

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together. Simplify if necessary.

Tags

CCSS.7.NS.A.2A

Front

What is the rule for multiplying two negative numbers?

Back

The product of two negative numbers is positive.

Tags

CCSS.7.NS.A.2A

Front

What is the rule for multiplying a positive number and a negative number?

Back

The product of a positive number and a negative number is negative.

Tags

CCSS.7.NS.A.2A

Front

How do you divide two rational numbers?

Back

To divide two rational numbers, multiply the first number by the reciprocal of the second number.

Tags

CCSS.7.NS.A.2C

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 simplest form of a fraction?

Back

A fraction is in simplest form when the numerator and denominator have no common factors other than 1.

Front

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

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the process for adding or subtracting fractions?

Back

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

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the importance of simplifying fractions?

Back

Simplifying fractions makes them easier to understand and work with, and it helps in finding equivalent fractions.