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.

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How do you add a positive and a negative rational number?

Back

To add a positive and a negative rational number, subtract the absolute values and take the sign of the number with the larger absolute value.

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Back

1.85

Front

How do you subtract a negative number from a negative number?

Back

Subtracting a negative number is the same as adding its absolute value.

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Back

Front

Back

-3.11

Front

How do you add fractions with different denominators?

Back

Find a common denominator, convert the fractions, and then add the numerators.

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Back

-\frac{2}{9}.

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Back

\frac{13}{35}.

Front

What is the first step in adding rational numbers?

Back

Identify the signs of the numbers and determine if you will add or subtract.