![]() ![]() One example of an irrational number is pi (3.14159265.) There's just no reasoning with them. These are called "irrational numbers",Īnd with good reason. If you manage to find a number which simply can't become a fraction, then don't be too hard on yourself. Should you have a whole number at the beginning of your decimal (6.45), you can simply remove it to work out your decimal, then include it again at the end (Example: 6 and 9/20). Find the 'Greatest Common Factor' (the highest number that divides exactly into both the numerator and the denominator).Įxample: Both 45 and 100 are multiples of 5, so we can divide both numbers by 5. Multiply your numerator by 10 / 100 / 1000 (your multiplier from step 1), and then do the same for the denominator.The denominator below the line is always 1, because a decimal is always part of 1. Write out your decimal as the numerator of a fraction (i.e. ![]() This will become your multiplier in step 3.
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