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Because you can't add or subtract fractions that have different denominators. Making them like fractions, by multiplying so the denominators are the same, you can add and/or subtract them.

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โˆ™ 2011-08-26 15:13:59
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Q: Why are two fractions converted into like fractions?
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Related questions

Before adding or subtracting two fractions they are converted into like fractions Explain with examples why this is necessary?

Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.


Why do you convert unlike fractions?

Unlike fractions have denominators that are unequal, and therefore cannot be added or subtracted. If two fractions need to be added or subtracted they must first be converted to like fractions.


What is the same about two fractions that are like fractions?

Fractions that are equivalent have the same values when simplified.


How is adding like fractions and adding unlike fractions the same?

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.


What fractions are equivalent to?

Fractions can be converted to decimals, percentages or mixed numbers.


Should all improper fractions be converted to mixed fractions?

Yes they should


How do you add two fractions that have like denominators?

In fractions, you can NEVER add or subtract


How can you convert to proper fractions?

It depends on what you want to convert to proper fractions. Not all things can be converted to proper fractions.


LCD of two or more fractions mean?

LCD is the Lowest Common Denominator which is the lowest number into which the denominators of all the fractions will each divide exactly. Each of the fractions can then be converted to an equivalent fraction with the new denominator which then allows the fractions to be added and/or subtracted.


What are tha different kinds of fraction?

there are 3 types of fractions proper,improper,mixed proper fractions:-numerator is less than denominator like-2/3,5/7,6/9 improper fractions:- numerator is greater than denominator like-3/2,5/4,9/7 mixed fractions:-always improper fractions are converted to mixed fractions,mixed fractions are combination of proper fractions and whole numbers like-2.2/7,5.3/7


What is the relashionship between fractions and decimals?

The relationship between fractions and decimals can be seen as follow. Fractions can be represented as ratio of two numbers and on dividing can give a decimal value. And decimal value can be converted into a fraction too.


What are 2 things that fractions and percentages have in common?

They can both be converted into decimals and from there into fractions or percentages.


What is the relationship between fractions and decimals?

Fractions can be converted into decimals and they mean the same thing.


What is 14.4 converted into fractions?

144/10.


What is 5 over 12 in unlike and like fractions?

Like and unlike fractions only make sense when you have two [or more] fractions. One fraction, such as 5/12, is always like itself.


How do you perform multiplication of improper fractions?

You do it just like you do normal fractions. Multiply the top by the top and the bottom by the bottom. Remember that whole numbers can be converted into fractions by putting them over 1. For example, 7 = 7/1, 29 = 29/1.


.75 converted into a fractions?

You can do this by deviding 75 with 100.


0.46 converted into fractions?

0.46 is 23/50


When do you use decimals versus the fraction form of rational numbers?

All rational numbers can be converted from decimals to fractions as for example 0.75 = 3/4 but irrational numbers can not be converted from decimals to fractions.


What fraction is larger?

When the fractions are converted to equivalent fractions with the same denominator the one with the larger numerator is the larger fraction.


Why is it necessary to convert two fractions into like fractions before adding and subtracting them?

Because think of like fractions as the same things.. you can subtract halves from halves for example, but what does it mean to take away a half from a third?By converting them into like fractions, we can add or subtract them easily.


How do you rewrite two fractions as like fractions with the same denominator?

1/2=4/8=1/2


What are like and unlike fractions?

Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.


How is a mixed number and an improper fraction similar?

Mixed fractions can be converted into improper fractions then changed back to a mixed number.


How do add mixed improper fraction?

Mixed numbers can be converted to improper fractions. Improper fractions can be added the same way proper fractions are.