Question

1/8*3/7-1/9*3/7

Answer 1

\(\frac{1}{8}\times\frac{3}{7}-\frac{1}{9}\times\frac{3}{7}\)

\(=\left(\frac{1}{8}-\frac{1}{9}\right)\times\frac{3}{7}\)

\(=\frac{1}{72}\times\frac{3}{7}\)

\(=\frac{1}{168}\)

Answer 2

\(\frac{1}{8}\times\frac{3}{7}-\frac{1}{9}\times\frac{3}{7}\)

\(=\left(\frac{1}{8}-\frac{1}{9}\right)\times\frac{3}{7}\)

\(=\frac{1}{72}\times\frac{3}{7}\)

\(=\frac{1}{168}\)

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