Tìm x, biết: x x 4/9 = 16/7
Giải thích
Ta có:
\[x \times \frac{4}{9} = \frac{{16}}{7}\]
\[x = \frac{{16}}{7}:\frac{4}{9}\]
\[x = \frac{{16}}{7} \times \frac{9}{4}\]
\[x = \frac{{36}}{7}\]
Vậy \[x = \frac{{36}}{7}\]
Chọn D
Ta có:
\[x \times \frac{4}{9} = \frac{{16}}{7}\]
\[x = \frac{{16}}{7}:\frac{4}{9}\]
\[x = \frac{{16}}{7} \times \frac{9}{4}\]
\[x = \frac{{36}}{7}\]
Vậy \[x = \frac{{36}}{7}\]
Chọn D