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Is cross mutiplication used to compare fractions?

Updated: 8/20/2019
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11y ago

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It is a simple way of doing so.

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11y ago
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Q: Is cross mutiplication used to compare fractions?
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Related questions

What does benchmark fractions mean?

They are fractions which a user is familiar with or comfortable with, and which can be used to compare a given fraction.


Why are decimals easier to compare than fractions?

Because decimals are a form you use regularly like with money, but with fractions, its not used all the time such as a decimal is used.


What does percent mean when used to make a comparison?

One way to compare two fractions is to convert both to a common denominator. Then the only difference is in the numerator. Comparison of the numerator is then sufficient to compare the fractions. A percentage is equivalent to converting the fractions to a denominator of 100.


How does cross multiplying of fractions work?

There are places where this term is used. 1st- to compare fractions across an equals you are multiplying each side by the product of the denominators. It looks like you multiply the numerator of the left side times the denominator of the right and put that product on the left side. Multiply the numerator of the left times the denominator of the right and put that on the right. In algebra this is good when looking for an unknown. 2nd- when comparing fractions to see which one is bigger you can multiply up from the denominator to the other numerator and compare these numbers to see which one is bigger.


How do you cross simplify?

Cross-simplification is a technique used to simplify the multiplication of fractions. It is possible when the fractions have common factors that can be divided out. For example the multiplication of the fractions 6/2 * 2/5 = (6*2)/(2*5). The 2's can be simplified out so that the multiplication is simply 6/1 * 1/5 = 6/5.


Which properties of mutiplication are used to simplify complex fractions?

The difference of two squares which enables complex conjugates to be used.The difference of two squares which enables complex conjugates to be used.The difference of two squares which enables complex conjugates to be used.The difference of two squares which enables complex conjugates to be used.


Where are fractions used?

fractions are used in almost everything we do


Why is it important to learn about equivalent fractions?

Answer: When adding or subtracting fractions with different denominators it is important to change the denominators into the lowest common denominator by using equivalent fractions. Answer: Equivalent fractions are used to: * Simplify fractions. It is sort of inelegant to write the final solution of a problem as 123/246, when you can just as well write it as 1/2. * Add fractions. If two fractions have different denominators, you need to convert them to equivalent fractions that have the same denominator. Only then can you add. * Subtract fractions (same as addition). * Compare fractions, to check which one is larger (same as addition).


Why do you compare fractions?

To compare any two fractions they first need to be converted to numbers on a similar basis: Convert both to decimals: the smaller decimal is the smaller fraction. Find equivalent fractions with the same denominator: the fraction with the smaller numerator is the smaller number. Find equivalent fractions with the same numerator: the fraction with the larger denominator is the smaller number. I recommend that the last of these is used for integral reciprocals (comparing 1/2, 1/4, 1/7 etc) or by more proficient users.


Where did LCM and HCF came from?

The need for such concepts arises, among other things, from the manipulation of fractions. The least common multiple is commonly used to find a common denominator for different frations; this is required to compare, add, or subtract two (or more) fractions.


When are fractions used in music?

there are fractions in whole steps


What is a fraction circle?

A fraction circle is what is used to compare two different fractions using triangles. For example if you have 4/8, 2/4 and 1/2 the answer is that they are equal.