2 câu trả lời
`1/2 : 1/3 × 1/4`
`1/2 × 3/1 × 1/4`
`3/2 × 1/4`
`3/8`
$#PhuonggThaooTraan$
`1/2 : 1/3 xx 1/4`
`= 1/2 xx 3/1 xx 1/4`
`= ( 1 xx 3 xx 1 )/( 2 xx 1 xx 4 )`
`= 3/8`
$#zero347$
`1/2 : 1/3 × 1/4`
`1/2 × 3/1 × 1/4`
`3/2 × 1/4`
`3/8`
$#PhuonggThaooTraan$
`1/2 : 1/3 xx 1/4`
`= 1/2 xx 3/1 xx 1/4`
`= ( 1 xx 3 xx 1 )/( 2 xx 1 xx 4 )`
`= 3/8`
$#zero347$