Rút gọn phân số rồi so sánh qua các phân số tối giản:
a) So sánh \(\frac{14}{35}\); \(\frac{18}{45}\); \(\frac{24}{60}\)
RGPS:
\(\frac{14}{35}\)= \(\frac{18}{45}\)= \(\frac{24}{60}\)=
Vậy : ..........................................................................
b) So sánh \(\frac{45}{65}\); \(\frac{48}{52}\); \(\frac{1010}{1313}\)
RGPS:
\(\frac{45}{65}\)= \(\frac{48}{52}\)= \(\frac{1010}{1313}\)=
Vậy : ............................................................................
a) Rút gọn phân số: \(\frac{14}{35}=\frac{14:7}{35:7}=\frac{2}{5};\frac{18}{45}=\frac{18:9}{45:9}=\frac{2}{5};\frac{24}{60}=\frac{24:12}{60:12}=\frac{2}{5}\)
Vậy, \(\frac{14}{35}=\frac{18}{45}=\frac{24}{60}\)
b) Rút gọn phân số: \(\frac{45}{65}=\frac{45:5}{65:5}=\frac{9}{13};\frac{48}{52}=\frac{48:4}{52:4}=\frac{12}{13};\frac{1010}{1313}=\frac{1010:101}{1313:101}=\frac{10}{13}\)
Vậy, \(\frac{45}{65}< \frac{1010}{1313}< \frac{48}{52}\)
\(\frac{14}{35}=\frac{2}{5}\);\(\frac{18}{45}=\frac{2}{5}\);\(\frac{24}{60}=\frac{2}{5}\)
\(\Leftrightarrow\frac{2}{5}=\frac{2}{5}=\frac{2}{5}\)
vậy\(\frac{14}{35}=\frac{18}{45}=\frac{24}{60}\)
b)\(\frac{45}{65}=\frac{9}{13};\frac{48}{52}=\frac{12}{13};\frac{1010}{1313}=\frac{10}{13}\)
\(\Leftrightarrow\frac{9}{13}< \frac{12}{13}>\frac{10}{13}\)
vậy \(\frac{45}{65}< \frac{48}{52}>\frac{1010}{1313}\)