3457/3452 < 6789/6784
\(\frac{3457}{3452}=\frac{3452+5}{3452}=1+\frac{5}{3452},\frac{6789}{6784}=\frac{6784+5}{6789}=1+\frac{5}{6789}\)
Ta có: \(3452< 6789\Leftrightarrow\frac{1}{3452}>\frac{1}{6789}\Leftrightarrow\frac{5}{3452}>\frac{5}{6789}\)
suy ra \(\frac{3457}{3452}>\frac{6789}{6784}\).
Trả lời :
Ta có:
3457/3452=1+ (5/3452)
6789/6784=1+(5/6784)
Vì 1=1 nên ta so sánh 5/3452 và 5/6784
Vì 5=5 , 3452<6784
Nên 5/3452>5/6784
Do đó: 1+(5/3452)>1+(5/6784)
hay 3457/3452>6789/6784
Ta thấy :
\(\frac{\text{3457}}{\text{3452}}=\frac{3452 + 5}{3452}=\text{1 + }\frac{\text{5}}{\text{3452}}\)
\(\frac{\text{6789}}{\text{6784}}=\frac{\text{6784}+\text{5}}{\text{6784}}=1+\frac{\text{5}}{\text{6784}}\)
\(\text{Vì}\frac{\text{5}}{\text{3452}}>\frac{\text{5}}{\text{6784}}\Rightarrow\text{1 +}\frac{\text{5}}{\text{3452}}>\text{1 +}\frac{\text{5}}{\text{6784}}\Rightarrow\frac{\text{3457}}{\text{3452}}>\frac{\text{6789}}{\text{6784}}\)
~~Học tốt~~
Giải :
Ta thấy :
\(\frac{\text{3457}}{\text{3452}}=\frac{3452+5}{3452}=\text{1 + }\frac{\text{5}}{\text{3452}}\)
\(\frac{\text{6789}}{\text{6784}}=\frac{\text{6784}+\text{5}}{\text{6784}}=1+\frac{\text{5}}{\text{6784}}\)
\(\text{Vì}\frac{\text{5}}{\text{3452}}>\frac{\text{5}}{\text{6784}}\Rightarrow\text{1 +}\frac{\text{5}}{\text{3452}}>\text{1 +}\frac{\text{5}}{\text{6784}}\Rightarrow\frac{\text{3457}}{\text{3452}}>\frac{\text{6789}}{\text{6784}}\)
\(\text{Ta thấy :}\)
\(\frac{\text{3457}}{\text{3452}}=\frac{3452+5}{3452}=\text{1 + }\frac{\text{5}}{\text{3452}}\)
\(\frac{\text{6789}}{\text{6784}}=\frac{\text{6784}+\text{5}}{\text{6784}}=1+\frac{\text{5}}{\text{6784}}\)
\(\text{Vì}\frac{\text{5}}{\text{3452}}>\frac{\text{5}}{\text{6784}}\Rightarrow\text{1 +}\frac{\text{5}}{\text{3452}}>\text{1 +}\frac{\text{5}}{\text{6784}}\Rightarrow\frac{\text{3457}}{\text{3452}}>\frac{\text{6789}}{\text{6784}}\)
\(\text{~~Học tốt~~}\)
