Dividing Whole Numbers by Fractions

The video tutorial explains how dividing by a number is equivalent to multiplying by its reciprocal. It introduces the concept of reciprocals using the number 2 and demonstrates how division can be transformed into multiplication. The 'same change flip' method is introduced, which involves keeping the dividend the same, changing division to multiplication, and flipping the divisor to its reciprocal. This method is applied to an example, and the multiplication process is detailed. The lesson concludes by summarizing the method of dividing a whole number by a fraction.

What is the reciprocal of the number 2?

• 1/2

• 1/4

• 2

• 1

How can dividing by a number be expressed in terms of multiplication?

• By adding the number to itself

• By dividing by its reciprocal

• By subtracting the number from itself

• By multiplying by its reciprocal

What does the 'same change flip' method involve?

• Changing the dividend, changing division to multiplication, and keeping the divisor the same

• Keeping the dividend the same, changing division to subtraction, and flipping the divisor

• Changing the dividend, keeping division the same, and flipping the divisor

• Keeping the dividend the same, changing division to multiplication, and flipping the divisor

In the 'same change flip' method, what happens to the divisor?

• It is multiplied by 2

• It is flipped to its reciprocal

• It is divided by 2

• It remains unchanged

What is the result of 10 divided by 1/2 using the 'same change flip' method?

• 20

• 10

• 5

• 15