(1)
(2/51+5/18)*9*17
=2/51*17*9+5/18*9*17
=6+85/2
=48.5
(2)
(3+3/4÷3/4+3)-1/6×1/6
=3+1+3-1/36
=7-1/36
=252/36-1/36
=251/36
=6 又 35/36
(1)
(2/51+5/18)*9*17
=2/51*17*9+5/18*9*17
=6+85/2
=48.5
(2)
(3+3/4÷3/4+3)-1/6×1/6
=3+1+3-1/36
=7-1/36
=252/36-1/36
=251/36
=6 又 35/36