B1:

a,<    b,<

c,<    d,>

e,>    g,>

B2:

a,<    b,<

c,<

b1

a, <

b, <

c, <

d,>

e,>

g, >

a, <

b, <

c,<

ửk89q785tuesw89ynjkinyi

a) 8-5/ 8=1-5/8

49-32/ 49=1-32/49

mà 5/8<32/49

=>1-5/8>1-32/49

=> 3/8>17/49

tg tự

b) >

c) <

\(\frac{3}{8}v\frac{17}{49}tc:\)\(\frac{3}{8}=\frac{18}{48}>\frac{17}{48}>\frac{17}{49}\Rightarrow\frac{3}{8}>\frac{17}{49}\)

\(\frac{16}{27}v\frac{15}{29}tc:\frac{16}{27}>\frac{15}{27}>\frac{15}{29}\Rightarrow\frac{16}{27}>\frac{15}{29}\)

\(\frac{15}{59}v\frac{24}{47}tc:\frac{15}{59}< \frac{24}{59}< \frac{24}{47}\Rightarrow\frac{15}{59}< \frac{24}{47}\)

a,\(\frac{327}{326}=1+\frac{1}{326};\frac{326}{325}=1+\frac{1}{325}\)

\(\Rightarrow\frac{1}{326}< \frac{1}{325}\)

\(\Rightarrow\frac{327}{326}< \frac{326}{325}\)

b,\(\frac{16}{27}>\frac{15}{27}>\frac{15}{29}\)

\(\Rightarrow\frac{16}{27}>\frac{15}{29}\)

16/27 và 15/29

Ta có : 16/27 > 16/29 > 15/29 nên 16/27 > 15/29.

Câu này làm trung gian chéo.

15/59 và 24/47

Ta có : 15/59 < 24/59 < 24/47 nên 15/59 < 24/47

Câu này cũng làm trung gian chéo.

a) \(\dfrac{8}{9}< 1;\dfrac{13}{7}>1\Rightarrow\dfrac{8}{9}< \dfrac{13}{7}\)

b) \(\dfrac{16}{27}>\dfrac{15}{27}>\dfrac{15}{29}\Rightarrow\dfrac{16}{27}>\dfrac{15}{29}\)

a) 13/7

b) 15/29

c) \(\dfrac{181818}{232323}=\dfrac{18x10101}{23x10101}=\dfrac{18}{23}< \dfrac{19}{23}\Rightarrow\dfrac{19}{23}>\dfrac{181818}{232323}\)

\(\frac{16}{27}>\frac{15}{29}\)

Kick mik nha , mik kick lại !!!!!!!!!!!!!!!!!!!!!!~-~

Do \(\frac{16}{27}>\frac{16}{29}>\frac{15}{29}\)

=> 16/27 > 15/29

Cách so sánh là tìm phân số ỡ giữa (phân số trung gian)

Ủng hộ mk nha ^_-

Ta có:

\(\frac{16}{27}>\frac{15}{27}\)

\(\frac{15}{27}>\frac{15}{29}\)

\(\Rightarrow\frac{16}{27}>\frac{15}{29}\)

a) 49-6/ 49=1-6/49

35-4/ 35=1-4/35

Mà 6/49>4/35

=> 1-6/49<1-4/35

=>43/49<31/35

các câu sau lm tương tự

b) > 

c) <