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

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Q: Why do you have to switch the numerator and denominator when dividing fractions?
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Related questions

What is the state rule for dividing fractions?

Take the 2nd fraction, switch the denominator with the numerator, multiply across, simplify.


What do you divide first numerator or denominator?

you switch the numerator with the denominator then multiply the numerator first then the denominator.


Which fraction is flipped when dividing a fraction?

You Switch The Numerator & Denominator of the second fraction and then you change the division to multiplication. For example: 1/2 divided by 2/3 becomes 1/2 times 3/2, and you would multiply straight across (numerator by numerator and denominator by denominator) to get 3/4.


What do you call when you take the numerator and switch it with the denominator?

inversion


What is it called when you switch the denominator and numerator?

Taking the reciprocal.


What is a fraction called when you switch the numerator and the denominator?

Reciprocal


How do you find the reciprocal in a fraction?

Switch the numerator with the denominator.


What is it called when you switch the numerator and denominator in a fraction?

it is called a reciprocol


What is it called when you switch the numerator and the denominator of the fraction?

It is called "taking the reciprocal".


What is it called when you switch over the Numerator and Denominator?

The resulting number is the reciprocal of the original number.


How do you change a fraction into its reciprocal?

You switch its numerator(top number) with its denominator(Bottom number)


What is 2 over 10 divided by 6 over 10?

To divide fractions, switch the numerator and denominator of the second number and multiply. Your problem would look like this: 2/10 x 10/6 To find the numerator (top number) of the product, multiply the numerators of both fractions. 2 x 10 = 20. To find the denominator (bottom number) of the product, multiply both denominators. 10 x 6 = 60. Therefore, the product is 20/60, which reduces to 1/3.


When the numerator and denominator switch such that the product of a number and its reciprocal is 1?

Unless the first number is zero, then this must ALWAYS be the case.


What is 3 over 4 divided by 3 over 7?

(3/4) / (3/7) is the same as saying (3/4) * (7/3). This is because with division of fractions you switch to multiplication if you take the reciprocal of the fraction in the denominator. Subsequently, you multiple the numerator and denominator in the equation which yields 21/12 which is also equal to 1 3/4 or 1.75.


What is the reciprocal of nine sixtenths?

16 / 9 To find the reciprocal simply switch the numerator and the denominator with one another.


What is the reciprocal of 1 over 14?

14. So to get the reciprocal, let's write 1 over 14 as 1/14. We just let the denominator and numerator switch places, and we get 14/1, which is 14.


How can you use a method to order fractions from greatest to least?

by cross multiplying is a easy method to use just multiply numerator from a fraction and denominator from another fraction to get the answer on the left side then you switch sides by denominator multiplying numerator to get the answer on the right side of the fraction from the for example 7/8 and 3/4 7x4=28 for 7/8 and 8x3=24 on 3/4 to prove it 7/8 is larger than 3/4


What is a reciprocal in Maths?

A reciprocal is the result you get upon reciprocating something, where to reciprocate is to calculate 1/x , with x the thing to be reciprocated. The reciprocal of 2 is 1/2, that of x2+376x is 1/(x2+376x). The reciprocal of 1 is 1, and that of zero is undefined since x/0 is undefined for all x. Obviously if you start with a fraction, the numerator and denominator switch: 1/(a/b) is the same as 1*(b/a)=b/a <-- Think about it as if you are dividing fractions or such. :)


What is the reciprocal of 3 over 16?

To take a reciprocal, all you have to do is switch the numerator and denominator. So for 3/16, the reciprocal would be 16/3.


How do you find the reciprocal?

The reciprocal of a number is what the original number is multiplied by to get 1. To find this you can simply divide 1 by the number you want the reciprocal for or, if the number is in fraction form, switch the denominator and numerator.


Why do you switch the numbers around when dividing fractions?

you switch the second fraction around ( multiply by the reciprocal ) because it is way easier than trying to actually divide the fraction by dividing, you get the same answer. but we multiply by the recipricol because multiplying fractions is simpler. example.... 4/6 divided by 8/5 you then get 4/6 * 5/8 = 5/12


How do you switch a fraction into a percent?

Divide the top number(numerator) by the bottom number(denominator). 3/5 3 divided by 5 =.60 60%


What is 179 and 3 8th divided by 2?

If we convert 179 and 3/8 into a improper fraction, it becomes 1435/8. Also, 2 can be written as 2/1 in fraction form.To divide fractions, we must first switch the numerator and denominator of the second fraction. In this case, the second fraction is 2/1. By switching the numerator and denominator, it becomes 1/2.Then we can turn it into a multiplication problem. Like so:Your problem is now: 1435/8 * 1/2Simplify: 1435/1689.6875 OR 89 and 11/16


What is the reciprocal of twelve percent?

Twelve percent is equivalent to the fraction 12/100. To find the reciprocal of a number, you take its fraction form and switch the numerator (top) and denominator (bottom). So the reciprocal of 12% is 100/12.


What is the reciprocal of 4 and 3 over 4?

First the number needs to be changed in appearance from 4 3/4 to 19/4. Then the numerator and the denominator need to switch places.Then you get the reciprocal, which is 4/19.