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Trả lời :
25 x 8 x 50 x 125 x 4 x 2
= ( 25 x 4 ) x ( 8 x 125 ) x ( 50 x 2 )
= 100 x 1000 x 100
= 100 000 000
~HT~
#sad
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\(a.\dfrac{3\times4\times7}{12\times8\times9}=\dfrac{3\times4\times7}{3\times4\times4\times2\times9}\\ =\dfrac{7}{4\times2\times9}=\dfrac{7}{72}\\ b.\dfrac{4\times5\times6}{12\times10\times8}=\dfrac{4\times5\times2\times3}{4\times3\times5\times2\times4\times2}=\dfrac{1}{8}\\ c.\dfrac{5\times6\times7}{12\times14\times15}=\dfrac{5\times6\times7}{2\times6\times7\times2\times5\times3}\\ =\dfrac{1}{2\times2\times3}=\dfrac{1}{12}\)
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y/4x9/2x4/5=160/3
y/4x18/5=160/3
y/4 =160/3:18/5
y/4 =400/27
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\(\frac{12\times3\times16}{6\times8\times3}\)
= \(\frac{6\times2\times3\times8\times2}{6\times8\times3}\)
= 2 x 2
= 4
k mình nhé mình trả lời đầy đủ nhất . nhớ kết bạn nhé
=\(\frac{\left(6\cdot8\cdot3\right)\cdot2\cdot2}{\left(6\cdot8\cdot3\right)}\)
=2.2=4.
tk mk nha các bn.
-chúc ai tk mk học giỏi-
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3248 x 246 - 3248 x 123 - 3248 x 23
=3248 x (246 - 123 - 23)
=3246 x 100
=324600
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638 - 752 : 8 x ( 36 : 6 )
= 638 - 752 : 8 x 6
= 638 - 94 x 6
= 638 - 564
= 74
638 - 752 : 8 x (36 : 6)
= 638 - 752 : 8 x 6
= 638 - 94 x 6
= 638 - 564
= 74
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\(\frac{25}{32}\cdot\frac{8}{50}.\frac{4}{3}.\frac{5}{10}=\frac{1}{12}\)
\(\frac{25}{32}\times\frac{8}{50}\times\frac{4}{3}\times\frac{5}{10}\)
\(=\frac{5\times5\times8\times4\times5}{8\times4\times5\times5\times2\times3\times5\times2}\)
\(=\frac{1}{12}\)
k mk nha
thank you very much
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X x 1 + 9xX+Xx2+Xx8=200
Xx(1+9+2+8) = 200
Xx20 = 200
X = 200 : 20
x = 10