简便计算6.3/1.4

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简便计算6.3/1.4
x){ɾ/-|nMR>Vq;:ٶz`H" =S<;6`[s-r e jkoK'#l̀9m]4O

简便计算6.3/1.4
简便计算6.3/1.4

简便计算6.3/1.4
6.3/1.4
=(7x0.9)/(7x0.2)
=0.9/0.2
=4.5

6.3/1.4 =7*0.9/(7*0.2)=0.9/0.2=9/2=4.5


6.3/1.4 =63/14=9*7/2*7=9/2=4.5