The old adage, "Practice doesn't make perfect; perfect practice makes perfect" is at the core of learning this skill. Trust me on this. Since 1997, this is among the most popular pages on the ADPRIMA web site, and for good reason. Good lesson plans do not ensure students will learn what is intended, but they certainly contribute to it.
A rational number can have either repeating decimal expansion or terminating decimal expansion. Repeating decimal expansion: A decimal expansion in which the numbers repeat in exactly the same order. For example, 0.251251251251 is a repeating decimal expansion because 251 keeps repeating in the same order.