Add and Subtract Signed Mixed Numbers

Front

What do you do when adding or subtracting fractions with the same signs?

Back

You add the absolute values of the fractions.

Front

What do you do when adding or subtracting fractions with different signs?

Back

You subtract the smaller absolute value from the larger absolute value.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction.

Front

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

Back

Divide the numerator by the denominator; the quotient is the whole number, and the remainder is the numerator of the proper fraction.

Front

What is the first step in adding or subtracting signed mixed numbers?

Back

Convert all mixed numbers to improper fractions.

Front

What is the rule for adding fractions with the same denominator?

Back

Add the numerators and keep the denominator the same.

Front

What is the rule for subtracting fractions with the same denominator?

Back

Subtract the numerators and keep the denominator the same.

Front

How do you find a common denominator for adding or subtracting fractions?

Back

Find the least common multiple (LCM) of the denominators.

Front

What is the result of adding a positive fraction and a negative fraction?

Back

The result depends on the absolute values; you subtract the smaller from the larger.

Front

What is the result of subtracting a negative fraction from a positive fraction?

Back

You add the absolute value of the negative fraction to the positive fraction.