Let's simplify the math expression step by step:
We have:
\[ \left(\frac{2}{5}\right) \left(\frac{3}{4} p + \frac{5}{6} w\right) + \left(\frac{1}{5}\right) \left(\frac{1}{2} p - 6\frac{2}{3} w\right) \]
Step 1: Distribute
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For \(\frac{2}{5}\):
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First, let's multiply \(\frac{2}{5}\) with \(\frac{3}{4} p\): \[ \frac{2 \times 3}{5 \times 4} = \frac{6}{20} = \frac{3}{10} p \]
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Now, multiply \(\frac{2}{5}\) with \(\frac{5}{6} w\): \[ \frac{2 \times 5}{5 \times 6} = \frac{10}{30} = \frac{1}{3} w \]
The first part gives us: \[ \frac{3}{10} p + \frac{1}{3} w \]
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For \(\frac{1}{5}\):
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First, multiply \(\frac{1}{5}\) with \(\frac{1}{2} p\): \[ \frac{1 \times 1}{5 \times 2} = \frac{1}{10} p \]
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Now, let's multiply \(\frac{1}{5}\) with \(6\frac{2}{3} w\):
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We need to change \(6\frac{2}{3}\) into a fraction: \[ 6\frac{2}{3} = \frac{20}{3} \]
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Now multiply \(\frac{1}{5}\) with \(\frac{20}{3}\): \[ \frac{20}{15} = \frac{4}{3} w \quad (\text{but it's negative, so } -\frac{4}{3} w) \]
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The second part gives us: \[ \frac{1}{10} p - \frac{4}{3} w \]
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Step 2: Combine
Now, we combine both parts: \[ \left(\frac{3}{10} p + \frac{1}{3} w\right) + \left(\frac{1}{10} p - \frac{4}{3} w\right) \]
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Combine the \(p\) terms: \[ \frac{3}{10} p + \frac{1}{10} p = \frac{4}{10} p = \frac{2}{5} p \]
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Combine the \(w\) terms: \[ \frac{1}{3} w - \frac{4}{3} w = -\frac{3}{3} w = -w \]
Final Result
So, the simplified expression is: \[ \frac{2}{5} p - w \]