3/0.25 ("/"代表除号)请简便计算

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3/0.25("/"代表除号)请简便计算3/0.25("/"代表除号)请简便计算3/0.25("/"代表除号)请简便计算3/0.25=3×4/0.25×4=12÷1=12解3/0.25=3/(1/4)

3/0.25 ("/"代表除号)请简便计算
3/0.25 ("/"代表除号)请简便计算

3/0.25 ("/"代表除号)请简便计算
3/0.25
=3×4/0.25×4
=12÷1
=12

解3/0.25
=3/(1/4)
=3*4
=12

0.25=1/4
3/0.25=3/(1/4)=3×4=12

3÷0.25=(3×4)÷(0.25×4)=12÷1=12