( 19 5/8 : 7/12 – 13 1/4 : 7/12) . 4/5 giúp e vs ạ 21/07/2021 Bởi Arianna ( 19 5/8 : 7/12 – 13 1/4 : 7/12) . 4/5 giúp e vs ạ
`( 19 5/8 : 7/12 – 13 1/4 : 7/12) . 4/5` `= (157/8 . 12/7 – 53/4 . 12/7) . 4/5` `= 12/7 ( 157/8 – 53/4) . 4/5` `= 12/7. ( 157/8 – 106/8) . 4/5` `= 12/7. 51/8 . 4/5` `=153/14 . 4/5` `=306/35` Bình luận
Đáp án + Giải thích các bước giải: `( 19 5/8 : 7/12 – 13 1/4 : 7/12) * 4/5``=( 157/8 * 12/7 – 53/4 * 12/7) * 4/5``=( 157/8- 53/4) * 12/7 * 4/5``=( 157/8- 106/8) * 12/7 * 4/5``=51/8 * 12/7 * 4/5``=153/14 * 4/5``=306/35` Bình luận
`( 19 5/8 : 7/12 – 13 1/4 : 7/12) . 4/5`
`= (157/8 . 12/7 – 53/4 . 12/7) . 4/5`
`= 12/7 ( 157/8 – 53/4) . 4/5`
`= 12/7. ( 157/8 – 106/8) . 4/5`
`= 12/7. 51/8 . 4/5`
`=153/14 . 4/5`
`=306/35`
Đáp án + Giải thích các bước giải:
`( 19 5/8 : 7/12 – 13 1/4 : 7/12) * 4/5`
`=( 157/8 * 12/7 – 53/4 * 12/7) * 4/5`
`=( 157/8- 53/4) * 12/7 * 4/5`
`=( 157/8- 106/8) * 12/7 * 4/5`
`=51/8 * 12/7 * 4/5`
`=153/14 * 4/5`
`=306/35`