`4/5 xx 3/7 + 4/5 xx 6/7 - 4/5 xx 4/14`

`= 4/5 xx ( 3/7 + 6/7-4/14)`

`= 4/5 xx 1`

`= 4/5`

( 6 x 8 – 48) : ( 10 + 11 + 12 + 13 + 14 + 15 )

= (48 – 48) : ( 10 + 11 + 12 + 13 + 14 + 15 )

= 0 : ( 10 + 11 + 12 + 13 + 14 + 15 )

= 0

câu trả lời là 0

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A = (91,5 X 26,3 - 17,4 x 52,6)x(41x11  -4100 x0,1 - 41)

A = (91,5 x 26,3 - 17,4 x 52,6) x 41 x (11 - 100X0,1 - 1)

A = (91,5 x26,,3 - 17,4 x 52,6) x 41 ( 11 - 10 - 1)

A = (91,5 x26,,3 - 17,4 x 52,6) x 41 x 0 

A = 0

0 nhé chị

5/14*7/13*26/25

=7/14*5/25*26/13

=1/2*1/5*2

=1/5

5/14\(\times\)7/13\(\times\)26/25

=\(\frac{5\times7\times26}{14\times13\times25}\)(rút gọn)

=1/5

\(\dfrac{4}{5}\times\dfrac{3}{7}\times\dfrac{4}{5}\times\dfrac{6}{7}\times\dfrac{4}{14}=\dfrac{4}{5}\times\dfrac{3}{7}+\dfrac{4}{5}\times\dfrac{6}{7}-\dfrac{4}{5}\times\dfrac{2}{7}=\dfrac{4}{5}\times\left(\dfrac{6}{7}+\dfrac{3}{7}-\dfrac{2}{7}\right)=\dfrac{4}{5}\)

lx

Uả cái j zị

ảnh đâu 

1/125 nha em 

HT  

@@@@@@ 

@@@@@@@@@@@@@@@

1/25 nha

HT

1/125

= 4/5 x ( 3/7 + 6/7 - 4/14 )

= 4/5 x ( 3/7 + 6/7 - 2/7 )

= 4/5 x 7/7

= 4/5