1个回答
2016-09-23
展开全部
三又二分之1-负二又四分之1+负1/3-0点二五+正六分之一
=7/2-(-9/4)+(-1/3)-0.25+1/6
=14/4+9/4-1/3-1/4+1/6
=23/4-1/4-1/3+1/6
=22/4-(1/3-1/6)
=22/4-1/6
=66/12-2/12
=64/12
=16/3
=7/2-(-9/4)+(-1/3)-0.25+1/6
=14/4+9/4-1/3-1/4+1/6
=23/4-1/4-1/3+1/6
=22/4-(1/3-1/6)
=22/4-1/6
=66/12-2/12
=64/12
=16/3
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