Question

tính thuận tiện :

1/5 x 2/8 +1/5 x 5/8 +1/5 x 1/8, bàng nhiêu zọ mọi người

Answer 1

= 1/5 x (2/8 + 5/8 +1/8)

=1/5 x 1

=1/5

Answer 2

=\(\dfrac{1}{5}\times(\dfrac{2}{8}+\dfrac{5}{8}+\dfrac{1}{8})\)

=\(\dfrac{1}{5}\times\dfrac{8}{8}\)

=\(\dfrac{1}{5}\times1\)

=\(\dfrac{1}{5}\)

Answer 3

1/5 x 2/8 + 1/5 x 5/8 + 1/5 x 1/8

= 1/5 x ( 2/8 +5/8 + 1/8 )

= 1/5 x 1

= 1/5 

Answer 4

= 1/5 x (2/8 + 5/8 +1/8)

=1/5 x 1

=1/5

-------------------------------------------HT---------------------------------------

Answer 5

TL:

1/5 x (2/8 + 5/8 + 1/8)

1/5 x 1

1/5

HT

Answer 6

= \(\dfrac{1}{5}\) x ( \(\dfrac{2}{8}\) + \(\dfrac{5}{8}\) + \(\dfrac{1}{8}\) )

= \(\dfrac{1}{5}\) x 1

= \(\dfrac{1}{5}\)

Answer 7

= 1/5 x (2/8 + 5/8 +1/8)

= 1/5 x 8/8

=1/5 x 1

=1/5