5分之2乘4除以5分之4
问题描述:
5分之2乘4除以5分之4
答
2/5×4÷4/5
=8/5÷4/5
=8/5×5/4
=2
5分之2乘4除以5分之4
2/5×4÷4/5
=8/5÷4/5
=8/5×5/4
=2