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\(\frac{4212}{14640}=\frac{4212:2}{14640:2}=\frac{2106}{7320}\)
\(\frac{6318}{21960}=\frac{6318:3}{21960:3}=\frac{2106}{7320}\)
Vậy\(\frac{2106}{7320}=\frac{4212}{14640}=\frac{6318}{21960}\)
a) \(\frac{1717}{2929}=\frac{17.101}{29.101}=\frac{17}{29}\)
\(\frac{171717}{292929}=\frac{17.10101}{29.10101}=\frac{17}{29}\)
=> \(\frac{1717}{2929}=\frac{171717}{292929}\left(=\frac{17}{29}\right)\)
b) \(\frac{6420-68}{8340-82}=\frac{2\left(3210-34\right)}{2\left(4170-41\right)}=\frac{3210-34}{4170-41}\)
Vậy; \(\frac{3210-34}{4170-41}=\frac{6420-68}{8340-82}\)
2.
\(\frac{2^5.7+2^5}{2^5.5^2-2^5.3}=\frac{2^5.\left(7+1\right)}{2^5.\left(25-3\right)}=\frac{8}{22}=\frac{4}{11}\)
\(\frac{2106}{7320}=\frac{351}{1220}\)
\(\frac{4212}{14604}=\frac{351}{1217}\)
\(\frac{6318}{21960}=\frac{351}{1220}\)
=> \(\frac{351}{1217}>\frac{351}{1220}\);\(\frac{351}{1217}>\frac{351}{1220}\)
Vậy : \(\frac{2106}{7320}< \frac{6318}{21960}\);\(\frac{4212}{14604}>\frac{6318}{21960}\)
Ta có:
\(\frac{2106}{7320}=\frac{2106:3}{7320:3}=\frac{720}{2440}\) (1)
\(\frac{4212}{14604}=\frac{4212:6}{14604:6}=\frac{702}{2434}\)
\(\frac{6218}{21960}=\frac{6218:9}{21960:9}=\frac{702}{2440}\) (2)
Từ (1) và (2)=>\(\frac{2106}{7320}=\frac{6318}{21960}\)
1.
\(\frac{2106}{7320};\frac{4212}{14604};\frac{6318}{21960}\)
Ta có:\(\frac{2106}{7320}=\frac{2106:3}{7320:3}=\frac{702}{2440}\)
\(\frac{4212}{14604}=\frac{4212:6}{14604:6}=\frac{702}{2434}\)
\(\frac{6318}{21960}=\frac{6318:9}{21960:9}=\frac{702}{2440}\)
=>\(\frac{2106}{7320}=\frac{6318}{21960}\)
