(3/4-3/16)X(2/9十1/3)?

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(3/4-3/16)X(2/9十1/3)?
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(3/4-3/16)X(2/9十1/3)?
(3/4-3/16)X(2/9十1/3)?

(3/4-3/16)X(2/9十1/3)?