đăng ít câu hỏi thôi bạn
,không biết thì hỏi thôi bạn
\(\frac{43}{20}+\frac{17}{6}:\left(\frac{5}{8}+\frac{7}{30}\right)\)
\(=\frac{43}{20}+\frac{17}{6}:\left(\frac{103}{120}\right)\)
\(=\frac{43}{20}+\frac{17}{6}.\frac{120}{103}\)
\(=\frac{43}{20}+\frac{340}{103}=\frac{11229}{2060}\)
\(\frac{43}{20}+\frac{17}{6}\div\left(\frac{5}{8}+\frac{7}{30}\right)\)
\(=\frac{43}{20}+\frac{340}{10}\)
\(=\frac{11229}{2060}\)
43/20+17/6:(5/8+7/30)
43/20+17/6:103/120
43/20+340/103
11229/2060
tinha nhanh nha
