The repeating decimal 1.81818182 can be expressed as a fraction by recognizing the repeating pattern. Since there are 2 repeating digits (18), we can set up an equation to find the fraction. Let x = 1.81818182. Multiplying x by 100 gives 100x = 181.818182. Subtracting the original equation from this gives 99x = 180, so x = 180/99. Simplifying this fraction gives the final answer of 20/11.
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18.1818182 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its rational equivalent is 181818182/10000000 which can be simplified.
Every fraction is an equivalent fraction: each fraction in decimal form has an equivalent rational fraction as well as an equivalent percentage fraction.
A fraction that has a different sign to the first fraction.
Divide the fraction by 100, and you will get the percentage of a fraction.
Or both. That's a complex fraction.