0.63除以0.7的商加上2.6,在乘以0.6,积是多少如题

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0.63除以0.7的商加上2.6,在乘以0.6,积是多少
如题

(0.63/0.7+2.6)*0.6
=(0.9+2.6)*0.6
=3.5*0.6
=2.1

2.1