Question

Answer 1

1) \(\dfrac{3}{4}< \dfrac{4}{4}=1\)

\(\dfrac{5}{4}>\dfrac{5}{5}=1\)

\(=>\dfrac{3}{4}< 1< \dfrac{5}{4}\)

3) \(-5>-6\)

\(=>-\dfrac{5}{9}>-\dfrac{6}{9}\)

5) \(7< 9\)

\(=>\dfrac{2}{7}>\dfrac{2}{9}\)

2) \(\dfrac{5}{6}=1-\dfrac{1}{6}\)

\(\dfrac{4}{5}=1-\dfrac{1}{5}\)

Mà: \(6>5=>\dfrac{1}{6}< \dfrac{1}{5}=>1-\dfrac{1}{6}>1-\dfrac{1}{5}\)

\(=>\dfrac{5}{6}>\dfrac{4}{5}\)

4) \(-\dfrac{9}{17}>-\dfrac{9}{9}=-1\)

\(-\dfrac{3}{2}< -\dfrac{3}{3}=-1\)  

\(=>-\dfrac{3}{2}< -1< -\dfrac{9}{17}\) 

6) \(\dfrac{-5959}{4242}=\dfrac{-59\cdot101}{42\cdot101}=\dfrac{-59}{42}\)

Answer 2

3) Do -5 > -6 nên

4) Ta có:

Answer 3

1) Do 3 < 5 nên

2) Ta có:

  Do 25 > 24 nên:

Answer 4

1) 54>55=154>55=1

5) 

56=1−1656=1−16

6>5=>16<15=>1−16>1−156>5=>16<15=>1−16>1−15

−917>−99=−1−917>−99=−1

=>−32<−1<−917=>−32<−1<−917 

6) 

Answer 5

1) 54>55=154>55=1

5) 

56=1−1656=1−16

6>5=>16<15=>1−16>1−156>5=>16<15=>1−16>1−15

−917>−99=−1−917>−99=−1

=>−32<−1<−917=>−32<−1<−917 

6)