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The GCF helps you to reduce fractions and the LCM helps you to add and subtract fractions. I don't know what profession you're going to pursue later in life, and you may not either. Cooks deal with fractions, auto mechanics do, Accountants do. You can swear to me that you will never have anything to do with fractions once you're out of school, but the study of mathematics is designed so that you will become proficient at manipulating numbers, so if you're going to be wealthy enough to have someone else manage your money, you'll be all right. You may need to know something about numbers while you're accumulating all that wealth. Better to learn it and not need it than to need it and not have learned it.

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13y ago

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