Toán 1/3.1/2+2/3.1/2+3/3.1/2+4/3.1/2+5/3.1/2+6/3.1/2=… 04/08/2021 By Kaylee 1/3.1/2+2/3.1/2+3/3.1/2+4/3.1/2+5/3.1/2+6/3.1/2=…
`1/3` . `1/2` + `2/3` . `1/2` + `3/3` . `1/2` + `4/3` . `1/2` + `5/3` . `1/2` + `6/3` . `1/2` = ( `1/3` + `2/3` + `3/3` + `4/3` + `5/3` + `6/3` ) . `1/2` = (`(1+2+3+4+5+6)/3`) . `1/2` = 7 . `1/2` = `7/2` Trả lời
`1/3 . 1/2 + 2/3 . 1/2 + 3/3 . 1/2 + 4/3 . 1/2 + 5/3 . 1/2 + 6/3 . 1/2` `=1/2.(1/3+2/3+3/3++4/3+5/3+6/3)` `=1/2.7` `=7/2` Trả lời
`1/3` . `1/2` + `2/3` . `1/2` + `3/3` . `1/2` + `4/3` . `1/2` + `5/3` . `1/2` + `6/3` . `1/2`
= ( `1/3` + `2/3` + `3/3` + `4/3` + `5/3` + `6/3` ) . `1/2`
= (`(1+2+3+4+5+6)/3`) . `1/2`
= 7 . `1/2`
= `7/2`
`1/3 . 1/2 + 2/3 . 1/2 + 3/3 . 1/2 + 4/3 . 1/2 + 5/3 . 1/2 + 6/3 . 1/2`
`=1/2.(1/3+2/3+3/3++4/3+5/3+6/3)`
`=1/2.7`
`=7/2`