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โˆ™ 2009-01-26 21:58:34
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Q: Do you need to have a reciprocal when multiplying fractions?
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Related questions

What are you doing when you divide fractions?

Multiplying by a reciprocal


When you are multiplying fractions to you have to do the reciprocal?

Yes, you do have to do the reciprocal. It is the basic main mathmatical process


When dividing fractions is a reciprocal used by multiplying?

Yes. One method for dividing fractions is to multiply the numerator fraction by the reciprocal of the denominator fraction.


How is dividing fractions similar to multiplying fractions?

It is similar because when you divide fractions you are technically multiplying the second number's reciprocal. (Turning the fraction the other way around)


Why does multiplying a reciprocal work in division fractions?

Because multiplication and division are inverse operations. And the reciprocal of a number is its multiplicative inverse.


Why do you need to find the reciprocal of the divisor when dividing a fraction?

It is not just in fractions. In general, division can be defined as multiplication by the reciprocal. For example, dividing by 5 is the same as multiplying by 0.2. However, it is mainly in calculations with fractions that this is normally used as a practical way of doing the calculations.


Why do you have to switch the numerator and denominator when dividing fractions?

This is because dividing by a number is the same as multiplying by its reciprocal.


Why does the method of dividing fractions work?

This is related to the fact that dividing by a number is the same as multiplying with the number's reciprocal.


Division of fractions?

You can divide fractions by multiplying them by their reciprocal. You take the bottom fraction and turn it over, making the denominator the numerator. Once you have done this, you can simply multiply.


Do you need a common denominator multiplying fractions?

No.


When you are multiplying fractions do you need like denominators?

No.


Do you need to change the denominator when multiplying fractions?

No.


How do you multiply hole numbers and fractions?

You simply put the whole number over one making it a fraction then you flip the reciprocal and divide the two fractions insted of multiplying.


What is the definition of multiplying fractions?

definition of multiplying fractions?


Do you need a common denominator for dividing and multiplying fractions?

No you do not.


Why is dividing by a number the same as multiplying by its reciprocal?

That is the definition of reciprocal.


How are multiplying and dividing fractions similar?

Dividing anything by a fraction is the same as multiplying by the fraction's reciprocal. For example, 4 ÷ 2/7 = 4 x 7/2 = 14


What is a flipped fraction called?

When the numbers within a fraction are reversed, this is called a reciprocal. A reciprocal is useful when dividing fractions - dividing by a fraction is the same as multiplying by its reciprocal.For example, 4 / 2/3 = 4 x 3/2 = 6.


What does reciprocal mean in math terms?

What does reciprocal mean in fractions


Is the reciprocal used to divide fractions?

In order to divide two fractions, multiply the first times the reciprocal of the second.


Do you use the reciprocal of the fraction when multiplying?

No.


When do you take the reciprocal of a fraction?

Mainly when you divide by a fraction - that is equivalent to multiplying by its reciprocal.


How is multiplying rational numbers like multiplying fractions and multiplying decimals?

Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.


What is the opposite of fractions?

Opposite of fractions is called reciprocal.


What are the rules for multiplying fractions?

When multiplying 2 fractions, we multiply the two numerators together and the two denominators together.