When starting to learn the converting of decimals to fractions, it can seem a bit overwhelming with a lot of room for error. One easy trick we picked up along the way is as simple as this: for every number after the decimal point, add a zero digit to the number 1.
What this means, is to convert the decimal to a whole, you add the zeros on until the decimal is a whole number, and just keep those zeros in the denominator.
If you had 0.82, you would have to multiply it by 100 to have it become 82. Therefore, the full converting of this decimal to a fraction reads: 82/100.