\(\text{a)}\)
\(\text{Ta có: }\text{ }\frac{21}{56}=\frac{21:7}{56:7}=\frac{3}{8}\text{ và }\frac{60}{96}=\frac{60:12}{96:12}=\frac{5}{8}\)
\(\Rightarrow\frac{21}{56}< \frac{60}{96}\left(\frac{3}{8}< \frac{5}{8}\right)\)
\(\text{b)}\)
\(\text{Ta có: }\frac{75}{100}=\frac{75:25}{100:25}=\frac{3}{4}\text{ và }\frac{45}{36}=\frac{45:9}{36:9}=\frac{5}{4}\)
\(\Rightarrow\frac{75}{100}< \frac{45}{36}\left(\frac{3}{4}< \frac{5}{4}\right)\)
\(\text{# học tốt #}\)
SHDlUIWDHULyasgdyuWGEDDed
TL:
a) \(\frac{21}{56}\) = \(\frac{3}{8}\), \(\frac{60}{96}\) =\(\frac{5}{8}\)
b) \(\frac{75}{100}\) = \(\frac{3}{4}\) , \(\frac{45}{36}\) = \(\frac{5}{4}\)
~HT~