Simplifying Fractions with Variables

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

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What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

How do you divide fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal (flipped version) of the second fraction.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by swapping its numerator and denominator.

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Back

Front

When dividing two fractions, what do you do with the second fraction before multiplying?

Back

Flip the fraction.

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Back

Front

What is the least common multiple (LCM) and how is it used in fractions?

Back

The LCM is the smallest multiple that two or more numbers share. It is used to find a common denominator when adding or subtracting fractions.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find the LCM of 10 and 20?

Back

The LCM of 10 and 20 is 20.