3乘4分之1乘6分之1
=3/4x1/6
=1/8
4分之3乘8分之5乘32
=15/32x32
=15
(7分之1加5分之4加35分之2)乘9分之7
=1/7x7/9+4/5x7/9+2/35x7/9
=1/9+28/45+2/45
=(28/45+2/45)+1/9
=5/9+1/9
=2/3
如果本题有什么不明白可以追问,
3乘4分之1乘6分之1
=3/4x1/6
=1/8
4分之3乘8分之5乘32
=15/32x32
=15
(7分之1加5分之4加35分之2)乘9分之7
=1/7x7/9+4/5x7/9+2/35x7/9
=1/9+28/45+2/45
=(28/45+2/45)+1/9
=5/9+1/9
=2/3
如果本题有什么不明白可以追问,