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30-(9分之7+6分之5-12分之11)*(－36)/(－5)
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【30-(9分之7+6分之5-12分之11)*(－36)】/(－5)
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[ 30 - ( 7/9 + 5/6 - 11/12 ) *(-36) ] ÷ (-5)
= [ 30 - ( - 28 - 30 + 33 ) ] ÷ (-5)
= [ 30 + 28 + 30 - 33 ] ÷ (-5)
= 55 ÷ (-5)
= - 11
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[ 30 - ( 7/9 + 5/6 - 11/12 ) *(-36) ] ÷ (-5)
= [ 30 - ( - 28 - 30 + 33 ) ] ÷ (-5)
= [ 30 + 28 + 30 - 33 ] ÷ (-5)
= 55 ÷ (-5)
= - 11
\
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