\(\frac{17}{34}=\frac{1}{2}\), \(\frac{60}{70}=\frac{6}{7}\),\(\frac{126}{255}=\frac{42}{85}\),\(\frac{24}{72}=\frac{1}{3}\), \(\frac{105}{30}=\frac{7}{2}\), \(\frac{78}{56}=\frac{39}{28}\)
\(\frac{1}{2},\frac{6}{7},\frac{42}{85},\frac{1}{3},\frac{7}{2},\frac{39}{28}\)
k mk mk kb
17/34 = 1/2 ; 60/70 = 6/7 ; 126/255 = 42/85 ; 24/72 = 1/3 ; 105/30 = 7/2 ; 78/56 = 39/28
là sao có thể làm bước trung gian không
\(\frac{17}{34}=\frac{17:17}{34:17}=\frac{1}{2}\)
\(\frac{60}{70}=\frac{60:10}{70:10}=\frac{6}{7}\)
\(\frac{24}{72}=\frac{24:24}{72:24}=\frac{1}{3}\)
\(\frac{105}{30}=\frac{105:15}{30:15}=\frac{75}{5}\)
\(\frac{78}{56}=\frac{78:2}{56:2}=\frac{39}{28}\)
