RATIONAL NUMBERS

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the reciprocal of a number?

Back

The reciprocal of a number is 1 divided by that number. For example, the reciprocal of 2 is 1/2.

Front

What is the reciprocal of a negative rational number?

Back

The reciprocal of a negative rational number is also a negative rational number.

Front

Which number has no reciprocal?

Back

0 has no reciprocal because division by zero is undefined.

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the number that, when added to the original number, results in zero.

Front

What is the additive inverse of (-a/b)?

Back

The additive inverse of (-a/b) is a/b.

Front

True or False: -|x| x |x| = x for all rational numbers.

Back

False.

Front

Which numbers are their own reciprocals?

Back

1 and -1 are their own reciprocals.

Front

What is the definition of a positive rational number?

Back

A positive rational number is a rational number greater than zero.

Front

What is the definition of a negative rational number?

Back

A negative rational number is a rational number less than zero.