9分之5乘以6+9分之4除以16

问题描述:

9分之5乘以6+9分之4除以16

5/9×6+4/9÷16
=5/9×6+4/9×1/16
=1/9(5×6+4×1/16)
=1/9(30+1/4)
=1/9×121/4
=121/36