Question

\(\dfrac{7}{8}\) ... \(\dfrac{8}{9}\)

\(\dfrac{6}{7}\) .... \(\dfrac{12}{15}\)

\(\dfrac{7}{9}\).... \(\dfrac{5}{7}\)

\(\dfrac{25}{40}\).....\(\dfrac{5}{8}\)

Answer 1

\(\dfrac{7}{8}< \dfrac{8}{9}\\ \dfrac{6}{7}>\dfrac{12}{15}\\ \dfrac{7}{9}>\dfrac{5}{7}\\ \dfrac{25}{40}=\dfrac{5}{8}\)

Answer 2

a: 7/8=1-1/8

8/9=1-1/9

mà -1/8<-1/9

nên 7/8<8/9

b: 4/5 và 6/7

4/5=28/35

6/7=30/35

=>4/5<6/7

c: 7/9=1-2/9

5/7=1-2/7

mà -2/9>-2/7

nên 7/9>5/7

Answer 3

7/8 < 8/9

6/7 > 12/15

7/9 > 5/7

25/40 = 5/8

Answer 4

`7/8 < 8/9`

`6/7  >12/15`

`7/9 > 5/7`

`25/40 = 5/8`

Answer 5

7/8<8/9

6/7>12/15

7/9>5/7

25/40 = 5/8