Question

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Answer 1

$(2 \frac{3}{2} + 5 \frac{7}{2} + 4 \frac{1}{2} ) \times (3 \frac{3}{4} - 2 \frac{1}{4} ) = \\ ( \frac{7}{2} + \frac{17}{2} + \frac{9}{2} ) \times ( \frac{15}{4} - \frac{9}{4} ) = \\ \frac{7 + 17 + 9}{2} \times \frac{15 - 9}{4} = \\ \frac{33}{2} \times \frac{6}{4} = \\ \frac{33}{2} \times \frac{3}{2} = \\ \frac{99}{4}$