Bai nay la Phan so hay 2 bai riêng chu ban ghi vay ai ma biết lam the nao
\(a,\frac{-15}{32}.\left(\frac{-18}{25}\right).\left(\frac{-1}{2}\right)^2\)
\(=\frac{-15}{32}.\left(\frac{-18}{25}\right).\frac{1}{4}\)
\(=\frac{-15.\left(-18\right).1}{32.25.4}\)
\(=\frac{27}{320}\)
\(b,\frac{35}{34}.\left(\frac{-17}{39}\right).\frac{26}{45}\)
\(=\frac{35.\left(-17\right).26}{34.39.45}\)
\(=\frac{-7}{27}\)