3.5- 4
You asked:
Evaluate the expression: \(3.5 - 4\)
MathBot Answer:
\[ 3.5 - 4 = - \frac{1}{2} = -0.5 \]
The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{3}{1}\), \(\frac{5}{10}\), and \(\frac{-4}{1}\) is \(10\). \[ \begin{aligned} 3.5 - 4 &= \frac{3 \cdot 10}{1 \cdot 10} + \frac{5 \cdot 1}{10 \cdot 1} + \frac{-4 \cdot 10}{1 \cdot 10} \\ &= \frac{30 + 5 + -40}{10} \\ &= \frac{-5}{10} \\&= - \frac{1}{2} \end{aligned} \]