9/10 bao nặng 1 và 4/5 kg hay 9/5 kg

9 phần là 9/5 còn 1 phần là:

9/5 : 9 = 1/5( kg)

4/5 bao gạo nặng:

1/5 x 4 = 4/5 (kg)

Nhé, nếu thấy đúng thì tk mk nhé bn, chúc bn học giỏi

giai ho mik di

bn ơi 1.4/5 kg là \(\frac{1.4}{5}\)kg đúng hem bn ??   

Mình cũng ko biết

bài này

mình học rùi lúc

khác mình 

trả lời cho nhé

\(1\frac{4}{5}=\frac{9}{5}\)

Bao gạo đó nặng : \(\frac{9}{5}\div\frac{9}{10}=2\left(kg\right)\)

\(\frac{4}{5}\)bao gạo nặng: \(\frac{4}{5}\times2=\frac{8}{5}\left(kg\right)\)

\(\frac{8}{5}kg=1,6kg\)

Đ/S: 1,6 kg

Khối lượng bao gạo là:

\(\left(1+\dfrac{4}{5}\right):\dfrac{9}{10}=\dfrac{9}{5}:\dfrac{9}{10}=2\left(kg\right)\)

Khối lượng của 4/5 bao gạo là:

\(2\cdot\dfrac{4}{5}=1.6\left(kg\right)\)

1.6 kg

Số kg bao gạo đó có là:\(\frac{10}{9}\cdot\frac{9}{5}=2\)(kg)

Lấy 4/5 bao gạo thì được:\(\frac{4}{5}\cdot2=\frac{8}{5}\left(kg\right)\)

Bao gạo đó có số kg gạo là :

    \(\frac{9}{5}\)\(\div\)\(\frac{9}{10}\) = 2 (kg)

Nếu lấy \(\frac{4}{5}\)bao gạo đó thì được số kg gạo là :

         2\(\times\)\(\frac{4}{5}\)= \(\frac{8}{5}\)( kg )

Nguoi ta lay ra 3/4 luong gao trong mot bao gao duoc 36kg hoi neu lay ra 4/5 luong gao trong bao do thi duoc bao nhieu ki lo gam

có ai giúp mình ko mình buồn lắm

sos

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9/10 bao nặng 1 và 4/5 kg hay 9/5 kg

9 phần là 9/5 . vậy 1 phần là :

9/5 : 9 = 1/5 ( kg )

4 /5 bao nặng :

1/5 x 4 = 4/5 ( kg )

nhé !