câu tiếp: tính bằng cách thuận tiện:P=1/17+7/170+3/70+12/35+1/20 29/07/2021 Bởi Isabelle câu tiếp: tính bằng cách thuận tiện:P=1/17+7/170+3/70+12/35+1/20
P = `1/17` + `7/170` + `3/70` + `12/35` + `1/2` P = ( `1/17` x 10 + `7/170` ) + ( `3/70` + `12/35` x 2 ) + `1/2` P = ( `10/170` + `7/170` ) + ( `3/70` + `24/70` ) + `1/2` P = `17/170` + `27/70` + `1/2` P = `1/10` + `27/10` + `1/2` x 5 P = `1/10` + `27/10` + `5/10` P = `28/10` + `5/10` P = `33/10` `#cactus` Bình luận
P = `1/17` + `7/170` + `3/70` + `12/35` + `1/2`
P = ( `1/17` x 10 + `7/170` ) + ( `3/70` + `12/35` x 2 ) + `1/2`
P = ( `10/170` + `7/170` ) + ( `3/70` + `24/70` ) + `1/2`
P = `17/170` + `27/70` + `1/2`
P = `1/10` + `27/10` + `1/2` x 5
P = `1/10` + `27/10` + `5/10`
P = `28/10` + `5/10`
P = `33/10`
`#cactus`