Adding and Subtracting 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.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

What is the first step in subtracting rational numbers?

Back

The first step in subtracting rational numbers is to ensure they have a common denominator, if they are fractions.

Front

What is the result of 5/8 + 1/4?

Back

7/8

Front

What is the result of -11.6 - 2.9?

Back

-14.5

Front

Which equation describes the picture: -4 + -6?

Back

(-4) + (-6) = (-10)

Front

What is the result of 5.8 - 1.9?

Back

3.9

Front

What is the result of 5 ⅕ - (-2 ⅗)?

Back

7 4/5

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 rule for subtracting negative numbers?

Back

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