Easy shortcut for converting a repeating decimal to a fraction

Easy shortcut for converting a repeating fraction to a decimal.

First, with the numerator, if you only have repeating numbers like .222 you write the repeating number as your numerator. If you have a mixed recurring decimal like .16666 subtract Notice the 1 does not repeat like the 6. The non-repeating number from the repeating number. Make sure the repeating number has the same number of digits as the repeating number. The denominator rules for non-repeating numbers, add a 0 ,and a 9 for repeating numbers. Once you write the fraction you then reduce. The video works the following example problems. Convert .333 to a fraction Convert .666 to a fraction and the following repeating decimals, .1818, .4166, .2518, and even .70643889889. This shortcut works on all repeating fractions.