You need to learn fractions because they show up in every day life. You can for example say that someone can half of your lunch.
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You need to learn how to convert from improper fractions to mixed fractions and vice versa; however, for most other operations, such as compare, add, subtract, multiply, and divide them, it really doesn't make much difference whether the fraction is proper or improper.
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).
if fraction didn't exist we will never know it or learn it and never understood it :)
Math is related to fractions. if you look in a math book or just online then one of the math topics is fractions. You learn how to divide, multiply, add and subtract, simplify and more about fractions and what to do with them.