Question
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fractions in the equation \( \frac{3}{5 x}-\frac{1}{x}=\frac{6}{20} \)

Ask by Bolton Campbell. in the United States
Jan 26,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

\( x = -\frac{4}{3} \)

Solution

Certainly! Let's solve the equation step by step: \[ \frac{3}{5x} - \frac{1}{x} = \frac{6}{20} \] ### Step 1: Simplify the Right Side First, simplify the fraction on the right side: \[ \frac{6}{20} = \frac{3}{10} \] So the equation becomes: \[ \frac{3}{5x} - \frac{1}{x} = \frac{3}{10} \] ### Step 2: Find a Common Denominator for the Left Side The denominators on the left side are \(5x\) and \(x\). The least common denominator (LCD) is \(5x\). Convert each fraction to have the LCD as the denominator: \[ \frac{3}{5x} - \frac{1}{x} = \frac{3}{5x} - \frac{5}{5x} = \frac{3 - 5}{5x} = \frac{-2}{5x} \] So now the equation is: \[ \frac{-2}{5x} = \frac{3}{10} \] ### Step 3: Solve for \(x\) Cross-multiply to eliminate the fractions: \[ -2 \times 10 = 3 \times 5x \] \[ -20 = 15x \] Now, isolate \(x\): \[ x = \frac{-20}{15} = \frac{-4}{3} \] ### Final Answer \[ x = -\frac{4}{3} \]

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Extra Insights

To solve the equation \( \frac{3}{5 x}-\frac{1}{x}=\frac{6}{20} \), it’s helpful to simplify both sides. First, notice that \( \frac{6}{20} \) simplifies to \( \frac{3}{10} \). This gives us \( \frac{3}{5 x} - \frac{1}{x} = \frac{3}{10} \). A common mistake here is forgetting to find a common denominator while combining fractions. For the left side, the common denominator would be \( 5x \), leading to \( \frac{3 - 5}{5 x} = \frac{-2}{5 x} \). Setting this equal to \( \frac{3}{10} \) will allow you to cross-multiply to solve for \( x \). Now, considering real-world applications, fractions play a key role in various fields such as cooking, construction, and finance. For instance, when following a recipe, you often need to adjust the quantities, which easily leads to using fractions. Whether you’re measuring ⅓ cup of sugar or dividing a pizza into slices, understanding fractions ensures perfect results and a harmonious kitchen experience!

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