Question

thực hien phep tính sau 

1\(\frac{13}{15}\). 0,75 - (\(\frac{8}{15\:\:}\)+ 25% ) 

Answer 1

\(1\frac{13}{15}.0,75-\left(\frac{8}{15}+25\%\right)\)
\(=\frac{28}{15}.\frac{75}{100}-\left(\frac{8}{15}+\frac{25}{100}\right)\)
\(=\frac{7}{5}-\frac{47}{60}\)
\(=\frac{37}{60}\)

Answer 2

\(1\frac{13}{15}.0,75-\left(\frac{8}{15}+25\%\right)=\frac{28}{15}.\frac{3}{4}-\left(\frac{8}{15}+\frac{1}{4}\right)=\frac{7}{5}-\frac{8}{15}-\frac{1}{4}=\frac{37}{60}\)

Answer 3

bài này ra số dư to lắm bạn ơi , chắc là đề sai

Answer 4

Cho mk xin lỗi

\(1\frac{13}{15}×0,75-\left(\frac{8}{15}+25\%\right)\)

\(=\frac{28}{15}×0,75-\left(\frac{8}{15}+\frac{25}{100}\right)\)

\(=\frac{28}{15}×\frac{75}{100}-\left(\frac{8}{15}+\frac{25}{100}\right)\)

\(=\frac{28}{15}×\frac{3}{4}-\left(\frac{8}{15}+\frac{1}{4}\right)\)

\(=\frac{28}{15}×\frac{3}{4}-\frac{8}{15}-\frac{1}{4}\)

\(=\frac{7}{5}-\frac{8}{15}-\frac{1}{4}\)

\(=\frac{13}{15}-\frac{1}{4}\)

\(=\frac{37}{60}\)