That really depends on what information is given.
You can find a missing denominator if you know something that the fraction is equal to. Then you can find the missing denominator through cross multiplication.
U sex
-- First, find the line in the middle of the fraction. -- Then look under the line. The number you find down there is the denominator.
Simply change the numerator and you will have another - different - fraction wit the same denominator.
Find a common denominator.
You can find a missing denominator if you know something that the fraction is equal to. Then you can find the missing denominator through cross multiplication.
U sex
An equivalent fraction is just a multiple of the one that you have (i.e it is the one that you have, scaled up or down). So multiply the fraction that you have until either the numerator or the denominator match the given numerator/denominator of the fraction with the missing number. The number in the corresponding place on the fraction that you multiplied is the missing number.
The answer depends on the part of the question that is missing.
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.
-- First, find the line in the middle of the fraction. -- Then look under the line. The number you find down there is the denominator.
Simply change the numerator and you will have another - different - fraction wit the same denominator.
Find a common denominator.
Denominator = Numerator/Value
It is an improper fraction when the numerator is greater than the denominator
To get the reciprocal of a fraction, exchange the numerator and denominator.
To find an equivalent fraction with a specific denominator, you multiply both the numerator and denominator of the original fraction by the same number. For example, if you have the fraction 1/2 and want an equivalent fraction with a denominator of 8, you would multiply both the numerator and denominator by 4, resulting in 4/8. This process maintains the value of the fraction while changing its form.