4x÷16.5=8.7
4x=8.7*16.5
4x=143.55
x=143.55/4
x=35.8875
是4x÷16分之5=8分之7
4x=7/8*5/16
4x=35/128
x=35/128*1/4
x=35/512
4x÷16,5=8,74x÷16分之5=8分之7
4x÷16.5=8.7
4x=8.7*16.5
4x=143.55
x=143.55/4
x=35.8875
是4x÷16分之5=8分之7
4x=7/8*5/16
4x=35/128
x=35/128*1/4
x=35/512