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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.

Q: Why are two fractions converted into like fractions?

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

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

In fractions, you can NEVER add or subtract

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

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

Related questions

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

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.

Fractions that are equivalent have the same values when simplified.

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

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.

Yes they should

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.

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.

In fractions, you can NEVER add or subtract

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

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

144/10.