Vaughan Stewart
08/25/2023 · Senior High School
\( \left[\begin{array}{l}5\left(\frac{1}{2}+\frac{1}{4}\right) m \\ \text { Área }=\end{array}\right. \)
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Tutor-Verified Answer
Step-by-step Solution
为了求解这个问题,我们需要计算给定表达式的值。具体步骤如下:
1. **计算括号内的和**:
\[
\frac{1}{2} + \frac{1}{4}
\]
为了相加这两个分数,我们需要一个共同的分母。这里,最小公倍数是4,所以我们将 \(\frac{1}{2}\) 转换为以4为分母的分数:
\[
\frac{1}{2} = \frac{2}{4}
\]
现在我们可以相加:
\[
\frac{2}{4} + \frac{1}{4} = \frac{3}{4}
\]
2. **将括号内的和乘以5m**:
\[
5 \left( \frac{3}{4} \right) m
\]
我们将5乘以 \(\frac{3}{4}\):
\[
5 \times \frac{3}{4} = \frac{15}{4}
\]
所以,表达式变为:
\[
\frac{15}{4} m
\]
3. **计算面积**:
根据题目,面积是 \(\frac{15}{4} m\)。
因此,最终答案是:
\[
\text{Área} = \frac{15}{4} m
\]
Quick Answer
\[
\text{Área} = \frac{15}{4} m
\]
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