Question

sắp xếp theo thứ tự từ bé đến lớn

2/3 ; 2/5 ; 2/7 ; 3/5 ; 3/7 ; 5/7

Answer 1

\(=\dfrac{70}{105};\dfrac{42}{105};\dfrac{30}{105};\dfrac{63}{105};\dfrac{45}{105};\dfrac{75}{105}\)

\(\dfrac{30}{105}< \dfrac{42}{105}< \dfrac{45}{105}< \dfrac{63}{105}< \dfrac{70}{105}< \dfrac{75}{105}\) hay \(\dfrac{2}{7}< \dfrac{2}{5}< \dfrac{3}{7}< \dfrac{3}{5}< \dfrac{2}{3}< \dfrac{5}{7}\)

Answer 2

2/7

2/5

3/7

3/5

2/3

5/7

Answer 3

\(\dfrac{70}{105};\dfrac{42}{105};\dfrac{30}{105};\dfrac{63}{105};\dfrac{45}{105};\dfrac{75}{105}\)

\(\dfrac{30}{105}< \dfrac{42}{105}< \dfrac{45}{105}< \dfrac{63}{105}< \dfrac{70}{105}< \dfrac{75}{105}\)

Nên ta có : \(\dfrac{2}{7};\dfrac{2}{5};\dfrac{3}{7};\dfrac{3}{5};\dfrac{2}{3};\dfrac{5}{7}.\)

Answer 4

2/7

2/5

3/7

3/5

2/3

5/7