Question

[Công Chúa Bloom]

so sánh 

663/6643vaf 4271/-4887

Answer 1

[༄༂ßσssツミ★Lâm Lí Lắc★ (༺FAN๖ۣۜDoãn...]

\(\frac{663}{6643}và\frac{4271}{\left(-4\right)^{887}}\)

\(\frac{51}{511}>\frac{4217}{\left(-4\right)^{887}}\)

Vậy \(\frac{663}{6643}>\frac{4271}{\left(-4\right)^{887}}\)

Answer 2

[Đức Lộc]

Ta dễ thấy: \(\hept{\begin{cases}\frac{663}{6643}>0\\\frac{4271}{-4887}< 0\end{cases}}\)

Do đó \(\frac{663}{6643}>\frac{4271}{-4887}\)

Vậy \(\frac{663}{6643}>\frac{4271}{-4887}\)