9/10 - 3/20
You asked:
Evaluate the expression: \(\frac{9}{10} - \frac{3}{20}\)
MathBot Answer:
\[ \frac{9}{10} - \frac{3}{20} = \frac{3}{4} = 0.75 \]
The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{9}{10}\) and \(\frac{-3}{20}\) is \(20\). \[ \begin{aligned} \frac{9}{10} - \frac{3}{20} &= \frac{9 \cdot 2}{10 \cdot 2} + \frac{-3 \cdot 1}{20 \cdot 1} \\ &= \frac{18 + -3}{20} \\ &= \frac{15}{20} \\&= \frac{3}{4} \end{aligned} \]