Question

[Hoàng Đỗ Ngọc Thiện]

tìm X:

a)4/5x8/3xX/7=96/105

b)7/4x3/Xx11/5=231/200

Answer 1

[Nguyễn Hoàng Tiến]

a)\(\frac{4}{5}\times\frac{8}{3}\times\frac{x}{7}=\frac{96}{105}\)

\(\frac{x}{7}=\frac{96}{105}:\frac{4}{5}:\frac{8}{3}=\frac{3}{7}\)

\(x=3\)

b) \(\frac{7}{4}\times\frac{3}{x}\times\frac{11}{5}=\frac{231}{200}\)

\(\frac{3}{x}=\frac{231}{200}:\frac{7}{4}:\frac{11}{5}=\frac{3}{10}\)

\(x=10\)