It depends on what you are trying to do. For most people using decimals is easier because it allows them to visualize the number better than a fraction. For example, if you needed to order them from least to greatest, it may be easier to see them in decimal form rather than fractions. However, fractions are usually more accurate because some decimals need to be rounded off. For example, the fraction 1/7 is more accurate than the decimal form .142857142857..... because the numbers 142857 continue on infinitely.
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Decimals until you get to values with over nine decimal places, then fractions are more exact
7 * 9 = 63 1 * 6 = 6 Fractions - 7 over 9 . 7_9 Fractions - 1 over 6 . 1_6 Decimals - 7.09 Decimals - 1.06
In decimals approximately 0.88888888889 In fractions 8/9
Change them into fractions over 10 or 100 and then order them