(3.91+3又3/7+6.09+6又4/7)*(2又1/8-1.125)+(1除2/3-1.5)*6.04

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(3.91+3又3/7+6.09+6又4/7)*(2又1/8-1.125)+(1除2/3-1.5)*6.04
(3.91+3又3/7+6.09+6又4/7)*(2又1/8-1.125)+(1除2/3-1.5)*6.04

(3.91+3又3/7+6.09+6又4/7)*(2又1/8-1.125)+(1除2/3-1.5)*6.04
(3.91+3又3/7+6.09+3又4/7)x(2又1/8-1.125)+(1除以2/3-1.5)x6.04
=(3.91+6.09+3又3/7+3又4/7)x(1+1又1/8-1.125)+(3/2-1.5)x6.04
=17