Yes, 0.7 is a rational number. A rational number is any number that can be expressed as the quotient or fraction p/q of two integers, where p is the numerator and q is the non-zero denominator.
In the case of 0.7, it can be written as the fraction 7/10. Here, 7 is the numerator and 10 is the denominator. Since both 7 and 10 are integers and the denominator is not zero, 0.7 satisfies the definition of a rational number.
Therefore, 0.7 is indeed a rational number.