计算 【（0.075+37/40）除以2/5-2/3-1.625】*8/25 3.24-2又3/25+3又1/15 3.

1.
【（0.075+37/40）／﹙2/5﹚-2/3-1.625】×8/25
= ﹛2.5-2/3-1.625﹜×8/25
=﹙11/6-13/8﹚×8/25
=1/15
2.
3.24-53/25+46/15
=81/25-53/25+46/15
=314/75
=4又14/75
3.
1又4/17*（2又2/3-3/4）+17又11/12除以17/12
=21/17×﹙8/3-3/4﹚+215/12／﹙17/12﹚
=161/68+215/17
=1021/68
=15又1/68
再问： 还有 1又4/17*（2又2/3-31又4/17*（2又2/3-3/4）+17又11/12除以17/12
再答： 1又4/17×﹛2又2/3－31又4/17×（2又2/3－3/4）﹜+﹙17又11/12﹚／﹙17/12﹚ =21/17×﹙8/3－531/17×＜8/3－3/4＞﹚﹢215/12×12/17 =21/17×﹙8/3－531/17×23/12﹚+215/17 =﹣67063/1156 =﹣58又15/1156