- Identify the numerator as a positive number and the denominator as a negative number.
- Divide the absolute values of the numerator and the denominator: \(\frac{42}{3} = 14\).
- Apply the negative sign to the result because a positive divided by a negative is negative.
- The final result is \(\boxed{-14}\).
Explanation
- Analyzing the Division Expression
The problem asks us to evaluate the quotient of the division expression \(\frac{42}{-3}\). We have a positive integer, 42, being divided by a negative integer, -3. The division of two numbers with opposite signs results in a negative value. Therefore, we expect the result of our calculation to be negative.
- Computing the Quotient
To compute the final quotient, we can divide the absolute values of the numerator and the denominator and then apply a negative sign to the result. The absolute value of the numerator is \(|42| = 42\), and the absolute value of the denominator is \(|-3| = 3\). Performing the division of these absolute values, we have \(\frac{42}{3} = 14\). Since the signs of the original numbers were different, the final result is \(-14\).
Examples
In real life, division with signed numbers often appears in contexts involving debt, temperature changes, or coordinate systems. For instance, if a company reports a total debt (a negative value) of \(\$42\) to be split equally among 3 departments, each department would be responsible for \(\frac{-42}{3} = -\$14\) of the debt. Similarly, if a submarine descends 42 meters in 3 minutes at a constant rate, its vertical position relative to the starting point changes at a rate of \(\frac{-42}{3} = -14\) meters per minute. These operations help us track changes in quantities where direction or state matters.