3/5 x 8/27 x 5/3

= (3/5 x 5/3) x 8/27

= 1 x 8/27

= 8/27

3/5 x 8/27 x 5/3

= (3/5 x 5/3) x 8/27

= 1 x 8/27

= 8/27

Chị huyền ơi cho em xin số được không chị

=8/27 nhé.

Vì ta gách số đó, gạch 3 và 5 còn ps 8/27

Học tốt!

= ( 3/5 x 5/3 ) x 8/27

= 1x 8/27

=8/27

= 8/27 nha

= 3/5 * 5/3 * 8/27

= 1 * 8/27

= 8/27

xin tiick

3/5x8/27x5/3

=(3/5x5/3)x8/27

=1x8/27=8/27

HT

\(\frac{3}{5}\cdot\frac{8}{27}\cdot\frac{5}{3}=\frac{3\cdot8\cdot5}{5\cdot3\cdot27}=\frac{8}{27}\)

= 3/8 x (5/4 + 3/4)
= 3/8 x 8/4
= 3/8 x 2
= ...........

3/8x[5/4+3/4]

3/8x2

3/4

`(2/3xx4/5)xx5/6`

`=2/3xx4/5xx5/6`

`=2/3xx4/6`

`=2/3xx2/3`

`=1`

__

`(4/5+5/4)xx3/4`

`=(16/20+25/20)xx3/4`

`=41/20xx3/4`

`=123/80`

__

`27/12+17/6-25/36-15/6`

`=(27/12-25/36)+(17/6-15/6)`

`=(81/36-25/36)+2/6`

`=56/36+2/6`

`=56/36+12/36`

`=68/36`

`=17/9`

\(\dfrac{3}{12}\)x\(\dfrac{15}{6}\)x\(\dfrac{8}{5}\)

=> \(\dfrac{5}{8}\)x\(\dfrac{8}{5}\)

=>1

\(\dfrac{3}{12}\times\dfrac{15}{6}\times\dfrac{8}{5}=1\)

=1

      \(202x\frac{3}{4}+202x\frac{5}{4}+202x8\)

\(=202x\left(\frac{3}{4}+\frac{5}{4}+8\right)\)

\(=202x\left(\frac{8}{4}+8\right)\)

\(=202x\left(2+8\right)\)

\(=202x10\)

\(=2020\)

\(=202*(\frac{3}{4}+ \frac{5}{4}+8) = 202*9 = 1818\)

    202 x \(\frac{3}{4}\) + 202 x\(\frac{5}{4}\) + 202 x 8

= 202 x ( \(\frac{3}{4}\)+\(\frac{5}{4}\)+ 8 )

= 202 x ( \(\frac{8}{4}\)+ 8 )

= 202 x ( 2 + 8 )

= 202 x 10

= 2020 . 

10/7+9/27+8/14+5/3

=10/7+1/3+4/7+5/3

=(10/7+4/7)+(1/3+5/3)

=14/7+6/3

=2+2

=4

câu hỏi gì khó thế. chẳng thấ quy luật nào car. bó tay. com.vn

Mình chưa học đến

trả lời mình đi

Tao mách cô mày hỏi bài thi nhá

`1/2 xx 2/3 xx 3/4 xx 4/5 xx 5/6 xx 6/7 xx 7/8 x 8/9`

`= [1 xx 2 xx 3 xx 4 xx 5 xx 6 xx 7 xx 8]/[2 xx 3 xx 4 xx 5 xx 6 xx 7 xx 8 xx 9]`

`= 1/9`

HT~