4-(1/3+2/5),5/6-1/4+1/3,6/5-[1-(2/15+1/3)]

Question

如题所述

Answer 1

4-(1/3+2/5)

=4-（5/15+6/15）

=4-11/15

=3又4/15

5/6-1/4+1/3

=10/12-3/12+4/12

=11/12

6/5-[1-(2/15+1/3)]

=6/5-1+（2/15+5/15）

=1/5+7/15

=3/15+7/15

=2/3本回答被网友采纳