math volume

what is 1 1/4*1 1/2*2 1/4

$\large 1\frac{1}{4}\cdot 1\frac{1}{2}\cdot 2\frac{1}{4}=\frac{5}{4}\cdot\frac{3}{2}\cdot\frac{9}{4}=\frac{135}{32}=4\frac{7}{32}$

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