Final answer:
0.6341 can be expressed as the fraction 31705/50000. Since both the numerator and denominator are integers, we can conclude that 0.6341 is a rational number.
Step-by-step explanation:
A rational number is a number that can be written as a fraction, where the numerator and denominator are both integers. In decimal form, a rational number is either a terminating decimal or a repeating decimal. To determine if 0.6341 is a rational number, we can check if it can be expressed as a fraction.
0.6341 can be expressed as the fraction 31705/50000.
Since both the numerator and denominator are integers, we can conclude that 0.6341 is a rational number.