Question

so sánh một cách nhanh nhất:

\(\frac{999}{556}\)và \(\frac{1000}{557}\)

Answer 1

1 - \(\frac{999}{556}\) = \(\frac{-443}{556}\)

1 - \(\frac{1000}{557}\) = \(\frac{-443}{557}\)

Vì \(\frac{-443}{556}\) < \(\frac{-443}{557}\) nên \(\frac{999}{556}\) > \(\frac{1000}{557}\)

Answer 2

First we have :

\(\frac{999}{556}=\frac{999\cdot557}{556\cdot557}\)

Then : \(999\cdot557=999\cdot556+999\)

Next we have : \(1000\cdot556=999\cdot556+556\)

As you see : \(999\cdot556+556< 999\cdot556+999\)

So :\(\frac{999}{556}< \frac{1000}{557}\)

Answer 3

Nhầm : \(\frac{999}{556}>\frac{1000}{557}\)

Answer 4

\(\frac{999}{556}=1\frac{443}{556};\frac{1000}{557}=1\frac{443}{557}\)

Mà\(\frac{443}{556}>\frac{443}{557}\)

Nên \(\frac{999}{556}>\frac{1000}{557}\)

Answer 5

tại đây nè :  https://olm.vn/hoi-dap/question/1292367.html