首先去括号,原式= --11/4 + 121/4 + 5/3 + 3/4 -- 29/4 +16/3
再来合并 = 【--11/4+121/4+3/4-29/4】+【5/3+16/3】
缩减 =84/4+21/3
结果 =21+7=28
(﹣11/4)-(-121/4)+5/3-(-3/4)-29/4-(-16/3)
=(-11/4+121/4+3/4-29/4)+(5/3+16/3)
=104/4+21/3
=26+7
=33