等号左边的x可以约分.约分后左边=4:16/5=4*5/16=5:4;右边=(5-X):3/4=(5-X)*4/3=20/3-4x/3即5:4=20/3-4x/3也就是5/4=20/3-4x/3
4x/3=20/3-5/4
x=(20/3-5/4)*3/4
=20/4-15/16
=5-15/16
=4又1/16
等号左边的x可以约分.约分后左边=4:16/5=4*5/16=5:4;右边=(5-X):3/4=(5-X)*4/3=20/3-4x/3即5:4=20/3-4x/3也就是5/4=20/3-4x/3
4x/3=20/3-5/4
x=(20/3-5/4)*3/4
=20/4-15/16
=5-15/16
=4又1/16