\(\dfrac{6}{8}\) ....\(\dfrac{5}{7}\)
\(\dfrac{6}{8}=\dfrac{30}{40}\); \(\dfrac{5}{7}\) = \(\dfrac{30}{42}\)
Vì \(\dfrac{30}{40}\) > \(\dfrac{30}{42}\) nên \(\dfrac{6}{8}\) > \(\dfrac{5}{7}\)
\(\dfrac{9}{15}\) ....\(\dfrac{3}{5}\)
\(\dfrac{9}{15}\) = \(\dfrac{9:3}{15:3}\) = \(\dfrac{3}{5}\)
Vậy \(\dfrac{9}{15}\) = \(\dfrac{3}{5}\)
\(\dfrac{24}{36}\) ....\(\dfrac{75}{100}\)
\(\dfrac{24}{36}\) = \(\dfrac{24:12}{36:12}\) = \(\dfrac{2}{3}\) = 1 - \(\dfrac{1}{3}\); \(\dfrac{75}{100}\) = \(\dfrac{75:25}{100:25}\) = \(\dfrac{3}{4}\) = 1 - \(\dfrac{1}{4}\)
vì \(\dfrac{1}{3}\) > \(\dfrac{1}{4}\) nên 1 - \(\dfrac{1}{3}\) < 1 - \(\dfrac{1}{4}\)
Vậy \(\dfrac{24}{36}\) < \(\dfrac{75}{100}\)
6/8>5/7
9/15=3/5
24/36<75/100
❤❤❤
a) \(\dfrac{6}{8}\)và \(\dfrac{5}{7}\)
\(\dfrac{6}{8}=1-\dfrac{2}{8}\)
\(\dfrac{5}{7}=1-\dfrac{2}{7}\)
Mà \(\dfrac{2}{8}< \dfrac{2}{7}\) nên \(\dfrac{6}{8}>\dfrac{5}{7}\)
b) \(\dfrac{9}{15}\) và \(\dfrac{3}{5}\)
\(\dfrac{9}{15}=\dfrac{3}{5}\)
Vậy \(\dfrac{9}{15}=\dfrac{3}{5}\)
c) \(\dfrac{24}{36}\) và \(\dfrac{75}{100}\)
\(\dfrac{24}{36}=\dfrac{2}{3}\)
\(\dfrac{75}{100}=\dfrac{2}{3}\)
Vậy \(\dfrac{24}{36}=\dfrac{75}{100}\)
