`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`
a)3/5>1/5 b)8/21<8/9 c)3/5<1 d)7/5>1
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 \(\dfrac{7}{5}>\dfrac{5}{5}\))
a) \(\dfrac{1}{5}< \dfrac{3}{5}\)
b) \(\dfrac{8}{21}< \dfrac{8}{9}\)
c) \(\dfrac{3}{5}< 1\)
d) \(\dfrac{7}{5}>1\)
a. 1/5 < 3/5
b.8/21 < 8/9
c. 3/5 < 1
d. 7/5 > 1