Calculate Operations with 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 sum of a positive and a negative rational number?

Back

The sum of a positive and a negative rational number depends on their absolute values. If the positive number's absolute value is greater, the result is positive; if the negative number's absolute value is greater, the result is negative.

Front

How do you add a positive number to a negative mixed number?

Back

Convert the mixed number to an improper fraction, then add the positive number to the negative fraction.

Front

What is the result of adding two negative numbers?

Back

The result of adding two negative numbers is always negative.

Front

What is the result of multiplying two negative numbers?

Back

The result of multiplying two negative numbers is always positive.

Front

What is the result of multiplying a positive number by a negative number?

Back

The result of multiplying a positive number by a negative number is always negative.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always non-negative.

Front

What is the process to find the temperature change?

Back

To find the temperature change, subtract the initial temperature from the final temperature. If the result is positive, the temperature increased; if negative, it decreased.

Front

What is the result of 0.65 + (-2 3/8)?

Back

-1.725