Adding and Subtracting mixed numbers with unlike denominators

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What is a mixed number?

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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 with unlike denominators?

Back

1. Find a common denominator. 2. Convert the fractions. 3. Add the whole numbers and the fractions separately.

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What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator, such as 3/4.

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What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, such as 5/4.

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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.

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What is the first step in adding fractions?

Back

Find a common denominator.

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What is the least common denominator (LCD)?

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The least common denominator is the smallest multiple that two or more denominators share.

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How do you simplify a fraction?

Back

Divide the numerator and the denominator by their greatest common factor (GCF).

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What is the GCF of 6 and 12?

Back

The GCF of 6 and 12 is 6.

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