162/67 . y= 270/335
162/67 . y = 54/67
y = 54/67 : 162/67 = 54/67 . 67/162
y = 54/162 = 1/3
\(y=\frac{270}{335}:\frac{162}{67}\)
\(y=\frac{1}{3}\)
162/67*y=270/335
y=270/335:162/67
y=135/405
y=1/3
Đề bài :
Tìm y , biết: 162/67 x y = 270/335 .
Bài làm :
162/67 x y = 270/335
y = 270/335 : 162/67 .
y = 1/3
\(\frac{162}{67}\)x y = \(\frac{270}{335}\)
y = \(\frac{270}{335}\) : \(\frac{162}{67}\)
y = \(\frac{1}{3}\)