Yes, negative 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. Since negative 7 can be written as -7/1, it fits the definition of a rational number.
In simpler terms, any integer, whether positive or negative, is considered a rational number because it can be expressed as a fraction with a denominator of 1. Therefore, negative 7 is indeed a rational number.