Adding Fractions and Mixed Numbers

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What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 2 1/3.

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How do you add mixed numbers?

Back

To add mixed numbers, first add the whole numbers, then add the fractions, and simplify if necessary.

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What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to add or subtract them.

Front

How do you find a common denominator for 1/4 and 5/6?

Back

The least common multiple of 4 and 6 is 12, so the common denominator is 12.

Front

What is the first step to add fractions with unlike denominators?

Back

The first step is to find a common denominator.

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How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor.

Front

What is the sum of 10 1/4 and 2 1/4?

Back

The sum is 12 1/2.

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What does it mean to reduce a fraction?

Back

To reduce a fraction means to simplify it to its lowest terms.

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