Toán tính biểu thức: 18/28 *12/30*13/22*14/26*14/26*15/32*16/24 08/07/2021 By Valentina tính biểu thức: 18/28 *12/30*13/22*14/26*14/26*15/32*16/24
18/28 *12/30*13/22*14/26*14/26*15/32*16/24= 9/35*13/22*14/26*14/26*15/32*16/24= 117/770*14/26*14/26*15/32*16/24= 9/110*14/26*15/32*16/24= 63/1430*15/32*16/24= 189/9152*16/24= 63/4576 Trả lời
`18/28 *12/30*13/22*14/26*14/26*15/32*16/24` `=9/14 *2/5*13/22*7/13*7/13*15/32*2/3` `=3/22*7/13*3/16``=(63)/(4576)` Trả lời
18/28 *12/30*13/22*14/26*14/26*15/32*16/24=
9/35*13/22*14/26*14/26*15/32*16/24=
117/770*14/26*14/26*15/32*16/24=
9/110*14/26*15/32*16/24=
63/1430*15/32*16/24=
189/9152*16/24=
63/4576
`18/28 *12/30*13/22*14/26*14/26*15/32*16/24`
`=9/14 *2/5*13/22*7/13*7/13*15/32*2/3`
`=3/22*7/13*3/16`
`=(63)/(4576)`