FTCE General Knowledge Math Practice Test 2026 – All-in-One Guide to Ensure Exam Success!

The decimal representation of the fraction 2/3 is indeed 0.666..., which is a repeating decimal. This means that the digit 6 goes on infinitely after the decimal point. To arrive at this decimal, you can divide 2 by 3. When performing the long division, 3 goes into 2 zero times, then 20 (after bringing down a zero) gives you 6 with a remainder of 2, and the process repeats indefinitely. This results in the continuous 6.

The other options represent different fractions or decimal values that do not accurately correspond to 2/3. For example, 0.625 is equivalent to 5/8, which is less than 2/3. Similarly, 0.5 is the decimal for 1/2, and 0.75 corresponds to 3/4, both of which are not equal to 2/3. Thus, 0.666... is the only correct decimal representation for the fraction 2/3.