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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