Keep-Change-Flip

Front

What does the term 'Keep-Change-Flip' refer to in mathematics?

Back

'Keep-Change-Flip' is a method used to divide fractions. It involves keeping the first fraction the same, changing the division sign to multiplication, and flipping the second fraction (taking its reciprocal).

Tags

CCSS.6.NS.A.1

Front

How do you divide a whole number by a fraction?

Back

To divide a whole number by a fraction, you can convert the whole number into a fraction (by placing it over 1), then use the 'Keep-Change-Flip' method.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by swapping its numerator and denominator. For example, the reciprocal of 3/4 is 4/3.

Front

What is the first step in the 'Keep-Change-Flip' method?

Back

The first step is to keep the first fraction the same.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does 'Change' refer to in the 'Keep-Change-Flip' method?

Back

'Change' refers to changing the division sign to a multiplication sign.

Tags

CCSS.3.OA.B.5

Front

What is the final step in the 'Keep-Change-Flip' method?

Back

The final step is to flip the second fraction, which means taking its reciprocal.

Tags

CCSS.7.NS.A.2B

Front

How can you express the division of 27 by 3/1 using the 'Keep-Change-Flip' method?

Back

You can express it as 27/1 multiplied by the reciprocal of 3/1, which is 1/3, resulting in (27/1) x (1/3).

Front

What is the result of dividing 27 by 3/1 using the 'Keep-Change-Flip' method?

Back

The result is 9, as (27/1) x (1/3) = 27/3 = 9.

Front

Why is it important to understand how to divide fractions?

Back

Understanding how to divide fractions is important because it allows you to solve real-world problems involving ratios, proportions, and rates.

Tags

CCSS.6.NS.A.1

Front

What is a common mistake when dividing fractions?

Back

A common mistake is to multiply the fractions instead of using the 'Keep-Change-Flip' method.

Tags

CCSS.6.NS.A.1