To calculate \(36 \times 9 - 1 \frac{1}{2}\), follow these steps:
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Calculate \(36 \times 9\): \[ 36 \times 9 = 324 \]
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Convert \(1 \frac{1}{2}\) to an improper fraction: \[ 1 \frac{1}{2} = \frac{3}{2} \]
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Subtract \(\frac{3}{2}\) from \(324\). First, convert \(324\) to a fraction with the same denominator: \[ 324 = \frac{648}{2} \]
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Now perform the subtraction: \[ \frac{648}{2} - \frac{3}{2} = \frac{648 - 3}{2} = \frac{645}{2} \]
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Convert \(\frac{645}{2}\) back to a mixed number or simply leave it as a fraction: \[ \frac{645}{2} = 322.5 \text{ or } 322 \frac{1}{2} \]
So the final answer is: \[ \frac{645}{2} \text{ or } 322.5 \text{ or } 322 \frac{1}{2} \]