Question

 

So sánh các phân số

 a) 3/7 ; 18 /7 ; -6/7 

b) 17/35 ; 17/53 

c) 17/35 ; 17/-35

d) 12/7 ; 17/5

Answer 1

a)\(-\frac{6}{7}< \frac{3}{7}< \frac{18}{7}\)

b) \(\frac{17}{35}>\frac{17}{53}\)

c) \(\frac{17}{35}< \frac{17}{-35}\)

d) Ta có : \(\frac{12}{7}=\frac{60}{35}\)

                  \(\frac{17}{5}=\frac{85}{35}\)

          \(\Rightarrow\frac{12}{7}< \frac{17}{5}\)

Answer 2

a)\(\frac{3}{7}\)>\(\frac{18}{7}\)>\(\frac{-6}{7}\)

b)\(\frac{17}{35}\)>\(\frac{17}{53}\)

c)\(\frac{17}{35}\)<\(\frac{17}{-35}\)

d)\(\frac{12}{7}\)<\(\frac{17}{5}\)

hok tốt