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cross-multiplying

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Q: Multiplying each numerator in the original rational equation by the denominator from the opposite side of the rational equation is known as?
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Related questions

If both the numerator and the denominator are negative does that make the fraction negative?

No!If numerator and denominator have the same signs the fraction is positive.If numerator and denominator have opposite signs the fraction is negative.


What is the opposite of denominator?

Numerater is the correct answer


How do you put fractions into opposite fractions?

To put fractions into opposite fractions, all you have to do is flip it so that the numerator becomes the denominator and the denominator becomes the numerator. This is called a reciprocal. Example: The opposite of 3/5 is 5/3


Is a numerator the opposite of the denominator?

Geographically if not mathematically. The numerator is the top number of a fraction and the denominator is the bottom number. They work together to tell how many parts out of the total number of parts are available.


How do you create negative quotients?

Make sure that the numerator and denominator have different signs.


Does y vary directly with x in the equation y equals 5x?

Yes, this is an example of direct variation.A:This is a direct variation because both are in the numerator of a fraction and on opposite sides of the = sign. If they are both on the same side of the equals sign, then one would have to be in the numerator and the other in the denominator for them to be a direct variation.


change 7/8 to eightieths?

70/80 You can multiply the numerator and the denominator by the same number. Opposite of reducing a fraction.


How do you find missing numerator or denominator?

If you have 2 fractions then you do cross multiplication where you take the left numerator and times it by the right denominator if your looking for the numerator. If your looking for the denominator then you do the same thing only you use the top as your divider not the bottom. Well if it is an equation with another fraction equaling it, you can multiply the denominator by a number that will allow it to have the same value of the denominator in the other fraction. Once you know that number ( the one it took so the denominators were equal when multiplied) you just divide the fraction ( the one you have both denominator and numerator) by that number, and put it over the original lone denominator, then you have your answer. If you only have the numerator you use pretty much the same concept except opposite the steps. Here's an example: 7/? = 21/30 You would know 7 multiplies with 3 to get 21, so you divide 30 by 3 (the number it took to get 7 to be 21), and you get 10. Then you put the 10 underneath the original 7/? resulting in the answer being 7/10. So 7/10=21/30. Hope this is the answer you were looking for.


Describe how finding the greatest common factor of the numerator and denominator of a fraction can help reduce the fraction?

5/7 is a fraction in its simplest form. To create an equivalent fraction it is necessary to multiply both the numerator and the denominator by the same integer. The opposite is also true. To reduce an equivalent fraction to its simplest form, it is necessary to divide both the numerator and the denominator by the same integer. 20/28 is an equivalent fraction of 5/7. It is possible to reduce 20/28 to 10/14 by dividing both the numerator and the denominator by 2, but that is not the simplest form. 10/14 can be reduced to 5/7 by dividing both the numerator and the denominator by 2 again. To ensure that an equivalent fraction is reduced to its simplest form, it is necessary to divide by the largest factor that is part of both of them. Another term for this the Greatest Common Factor, or GCF.


Negative 3 is the reciprocal so what is the opposite of negative 3?

Actually the reciprocal of any number is that number in the denominator instead of in the numerator. The reciprocal of -3 is 1 over -3.


Why do you multiply fractions by its recipical?

You don't. If you are dividing fractions, you multiply by the reciprocal. For example, 2/3 times 6/11 is 2/3 * 6/11 = 4/11. But, 2/3 divided by 6/11 is 2/3 * 11/6 = 11/9 or 1 2/9. The reason you do this is because the numerator is being multiplied and a denominator is being divided. When you divide, you are doing the opposite of multiplying so you flip the fraction, which is an opposite operation then you can multiply, which is the opposite of dividing.


Why are the sine and cosine of an angle always less than 1?

Since the hypotenuse (denominator) is always greater than the opposite or adjacent side (numerator), the ratio will always be smaller than one.