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12 tháng 12 2017

a : 12.03

b : 23.45

dung 999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999% luôn đó

12 tháng 12 2017

10+2+3/100

=10+2+0,03

=12+0,03

=12,03

23+4/10+5/100

=23+0,4+0,05

=23,4+0,05

=23,45