Question

[lương thanh thảo]

\(23\frac{1}{4}:\frac{5}{7}-13\frac{1}{4}:\frac{5}{7}\)ghi rõ cách tính

Answer 1

[Trang]

=(\(23\frac{1}{4}\)- 13\(\frac{1}{4}\)) : \(\frac{5}{7}\)

=       10                      : \(\frac{5}{7}\)

= 14

Answer 2

[Yêu nè]

\(23\frac{1}{4}:\frac{5}{7}-13\frac{1}{4}:\frac{5}{7}\)

\(=23\frac{1}{4}.\frac{7}{5}-13\frac{1}{4}.\frac{7}{5}\)

\(=\left(23\frac{1}{4}-13\frac{1}{4}\right).\frac{7}{5}\)

\(=10\cdot\frac{7}{5}\)

\(=\frac{7}{2}\)