问题标题:
五年级数学题:用你喜欢的方法计算大概是脱式跟简单19/12+7/5+5/12-2/55/7+(2/7-5/6)3-5/9-3/5-4/918/11-(16/17-4/11)4/5-(13/16-5/16)+3/41/2+2/5-3/10+0.6格式如下:XX/XX-XX/XX+XX/XX=XXXXXXXXXXX=XXXXXX=XX分子/分母
问题描述:

五年级数学题:用你喜欢的方法计算

大概是脱式跟简单

19/12+7/5+5/12-2/5

5/7+(2/7-5/6)

3-5/9-3/5-4/9

18/11-(16/17-4/11)

4/5-(13/16-5/16)+3/4

1/2+2/5-3/10+0.6

格式如下:

XX/XX-XX/XX+XX/XX

=XXXXXXXXXXX

=XXXXXX

=XX

分子/分母

傅龙舟回答:
  19/12+7/5+5/12-2/5   =19/12+5/12+7/5-2/5   =24/12+5/5   =2+1   =3   5/7+(2/7-5/6)   =5/7+2/7-5/6   =7/7-5/6   =1-5/6   =1/6   3-5/9-3/5-4/9   =3-(5/9+4/9)-3/5   =3-1-3/5   =2-3/5   =1又2/5   18/11-(16/17-4/11)   =18/11+4/11-16/17   =22/11-16/17   =2-16/17   =1又1/17   4/5-(13/16-5/16)+3/4   =4/5-1/2+3/4   =4/5-(1/2-3/4)   =4/5-1/4   =11/20   1/2+2/5-3/10+0.6   =0.5+0.4-0.3+0.6   =1.2
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