Question

So sánh các phân số:

a,\(\dfrac{1}{5}và\dfrac{3}{5}\)                    b\(\dfrac{8}{21}và\dfrac{8}{9}\)                  c,\(\dfrac{3}{5}và1\)            d,\(\dfrac{7}{5}và1\)

Answer 1

`a)1<3`

`=>1/5<3/5`

`b)21>9`

`=>8/21<8/9`

`c)3/5<5/5=1`

`d)7/5>5/5=1`

Answer 2

a)3/5>1/5 b)8/21<8/9 c)3/5<1 d)7/5>1

Answer 3

a 1/5<3/5

b 8/21<8/9

c 3/5<1

d 7/5>1

Answer 4

a) \(\dfrac{1}{5}< \dfrac{3}{5}\)(vì 1<3)

b) \(\dfrac{8}{21}< \dfrac{8}{9}\)(vì 21>9)

c) \(\dfrac{3}{5}< 1\)(Vì \(\dfrac{3}{5}< \dfrac{5}{5}\))

d) \(\dfrac{7}{5}>1\)(Vì \(\dfrac{7}{5}>\dfrac{5}{5}\))

Answer 5

a) \(\dfrac{1}{5}< \dfrac{3}{5}\)

b) \(\dfrac{8}{21}< \dfrac{8}{9}\)

c) \(\dfrac{3}{5}< 1\)

d) \(\dfrac{7}{5}>1\)

Answer 6

a. 1/5  <   3/5

b.8/21    <   8/9

c. 3/5  < 1

d. 7/5   >   1