Math i 14 feel free to pass this on to your friends

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Unformatted text preview: 56.9 Converting a decimal to a simple fraction and back To convert a decimal to a vulgar fraction it is necessary: a number after a decimal point to make as the numerator, and the n-th power of 10 ( here n – a quantity of decimal places ) - as the denominator. A non-zero integer part of a decimal is saved the same in a vulgar fraction; a zero integer part is omitted. For example: To convert a vulgar fraction to a decimal it is necessary to divide a numerator by a denominator according to the division rules. Math I - 14 - Feel free to pass this on to your friends, but please don’t post it online. Discuss UPCAT and other college entrance exam questions and answers at Academic-Clinic’s Facebook Page. We encourage you to answer the questions we post there and actively participate in the discussions on our wall. For UPCAT, ACET, DLSUCET and USTET tips, tricks, news and other college entrance exam information, visit the Academic-Clinic website. Tell your friends and classmates to come find and join us. The more, the merrier. Good luck! AcademicAcademic Academic-Clinic.com The achiever’s guide to academic life and beyond… W ebsite: http://academic-clinic.com Facebook: http://www.facebook.com/academic.clinic Twitter: http://twitter.com/acadclinic College entrance exam and science high school entrance test tips. Conquer UPCAT, ACET, USTET, DLSUCET, PSHS-NCE, and other entrance tests. E x a m p l e . Convert 5 / 8 to a decimal fraction. S o l u t i o n . Dividing 5 by 8, we’ll receive 0.625. ( Check it, please ! ) In the most of cases this process can be continued infinitely. Then a simple fraction cannot be converted exactly to a decimal. But in practice this is never required. Dividing is broken if decimal places, that are of interest, have been already received. E x a m p l e . Convert 1 / 3 to a decimal fraction. S o l u t i o n . Dividing 1 by 3 will be infinite: 1:3 = 0.3333… . Check it, please. Percents Percent is a hundredth part of unit. A record 1% means 0.01. T...
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