8分之9×中括号4分之3-括号16分之7减8分之1除2分之一括号
4个回答

8分之9×中括号4分之3-括号16分之7减8分之1除2分之一括号

=9/8X[3/4-(7/16-1/2÷1/8)]

=9/8X[3/4-(7/16-1/2X8)]

=9/8X[3/4-(7/16-4)]

=9/8X[3/4-(7/16-64/16)]

=9/8X[3/4-(-57/16)]

=9/8X[3/4+57/16]

=9/8X[12/16+57/16]

=9/8X[69/16]

=621/128

8分之9×中括号4分之3-括号16分之7减8分之1除以2分之一括号

=9/8X[3/4-(7/16-1/8÷1/2)]

=9/8X[3/4-(7/16-1/8X2)]

=9/8X[3/4-(7/16-1/4)]

=9/8X[3/4-(7/16-4/16)]

=9/8X[3/4-(3/16)]

=9/8X[12/16-3/16]

=9/8X[9/16]

=81/128

哪一个是你想要的?