Câu trả lời:
`x = 5/4 - 2/3`
`=> x = 15/12 - 8/12`
`=> x = 7/12`
`x = 5/4 - 2/3`
`=> x = 15/12 - 8/12`
`=> x = 7/12`
dsdxqwas
fcqwdxc
ffffffffffffffffffffffffffff