A=\(11\frac{3}{13}-\left(2\frac{4}{7}+5\frac{3}{13}\right)\)
=\(11\frac{3}{13}-5\frac{3}{13}-2\frac{4}{7}\)
=\(6-\frac{18}{7}\)
\(\frac{521}{87}\)
k cho a nha
A=\(11\frac{3}{13}-2\frac{4}{7}-5\frac{3}{13}\)
A=\(11\frac{3}{13}-5\frac{3}{13}-2\frac{4}{7}\)
A=\(6-\frac{18}{7}\)
A=\(\frac{24}{7}\)
tách các hỗn số ra rồi cộng phân số với phân số&số tự nhiên với số tự nhiên
\(A=11\frac{3}{13}-\left(2\frac{4}{7}+5\frac{3}{13}\right)\)
\(A=11\frac{3}{13}-2\frac{4}{7}-5\frac{3}{13}\)
\(A=\left(11\frac{3}{13}-5\frac{3}{13}\right)-2\frac{4}{7}\)
\(A=6-2\frac{4}{7}\)
\(A=3\frac{3}{7}\)
\(A\)\(=\) 11\(\frac{3}{13}\)\(-\)( 2\(\frac{4}{7}\)\(+\)5\(\frac{3}{13}\))
\(A\)\(=\)11\(\frac{3}{13}\)\(-\)5\(\frac{3}{13}\)\(-\)2\(\frac{4}{7}\)
\(A\)\(=\) \(6\) \(-\)2\(\frac{4}{7}\)
\(A\)\(=\) 3\(\frac{3}{7}\)\(=\)\(\frac{24}{7}\)