Question

 1 13/15 . 0,75 - ( 11/20 + 25%) : 7/3

Answer 1

\(1\frac{13}{15}.0,75-\left(\frac{11}{20}+25\%\right):\frac{7}{3}\)

\(=\frac{28}{15}.\frac{3}{4}-\left(\frac{11}{20}+\frac{1}{4}\right):\frac{7}{3}\)

\(=\frac{7}{5}-\frac{4}{5}.\frac{3}{7}\)

\(=\frac{7}{5}-\frac{12}{35}\)

\(=\frac{37}{35}\)

Answer 2

Đặt A=\(1\frac{13}{15}\). \(0,75\) - (\(\frac{11}{20}\)+25%):\(\frac{7}{3}\)

A=\(\frac{28}{15}\). \(\frac{3}{4}\)-(\(\frac{11}{20}\)+\(\frac{1}{4}\)). \(\frac{3}{7}\)

A=\(\frac{7}{5}\)- \(\frac{4}{5}\).\(\frac{3}{7}\)

A=\(\frac{7}{5}\)-\(\frac{12}{35}\)

A=\(\frac{37}{35}\)