![]() ![]() Of course, you need to put in a lot of practice to be able to do all of this (almost at a sub-conscious level) in about 30 to 40 seconds. You can then simplify the fraction if needed. ![]() To turn it into a fraction, place the 4 over 10, to give 4/10. As an example, for 0.4 you'll find the four is in the tenths position. This will not only help you eliminate the percentages in this range but will also help you pick the percentage which IS in this range (knowing the GMAT, it is very probable that you will most likely have one option like this in a question of this level). To convert a decimal to a fraction, take the decimal number and write it as the numerator (top number) over its position value. When a fraction is expressed in its simplest form, if the denominator is of the form \(2^x * 5^y\) where x and y are non-negative integers, then the fraction will yield a terminating decimal.įor example, \(\frac\) should be in between 0.33 and 0.40. Well, we could take 100 from the 100s place, and make it 10 10s. So, is there a way to quickly identify if a fraction would yield a terminating decimal without actually dividing? The answer is YES. Not all fractions convert to terminating decimals. They are not difficult to learn either.įirst up, we look at identifying fractions that yield terminating decimals. Questions related to these techniques have shown up occasionally on the GMAT, hence, it’s important that you learn them. ![]() In the third and last part of this article, today, we shall see some techniques to convert between fractions and decimals. If you have not read any of these parts, here’s a link for you to do so, so that you can go through the basic concepts and make better use of this third part of the article on Fractions
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