\(a,\frac{2}{3}>\frac{1}{4}\)

\(b,\frac{7}{10}< \frac{7}{8}\)

\(c,\frac{6}{7}>\frac{3}{5}\)

\(d,\frac{14}{21}< \frac{60}{72}\)

\(e,\frac{16}{9}< \frac{24}{13}\)

\(g,\frac{27}{82}< \frac{26}{75}\)

a 2/3 > 1/4

b 7/10 < 7/8

c6/7 > 3/5

d14/21 < 60/72

e16/9 < 24/13

g27/82<26/75

\(B=\frac{31}{2}.\frac{32}{2}.....\frac{60}{2}\)

\(B=\left(31.32.33....60\right).\frac{1.2.3....60}{2^{30.\left(1.2.3...30\right)}}\)

\(B=\left(1.3.5.....59\right).\frac{2.4.6.....60}{2.4.6....60}=1.3.5...59\)

=> \(B=A\)

\(\frac{75}{100}=\frac{3}{4}=\frac{6}{8}< \frac{7}{8}\)

\(\frac{7}{8}< 1< \frac{3}{2}\)

\(\frac{60}{108}=\frac{5}{9}=\frac{15}{27}>\frac{15}{37}\)

\(\frac{15}{37}=\frac{30}{74}< \frac{31}{74}< \frac{31}{54}\)

\(\frac{0}{16}=\frac{0}{21}\)

Xét \(1-\frac{1965}{1967}=\frac{2}{1967}>\frac{2}{1975}=1-\frac{1973}{1975}\Rightarrow\frac{1965}{1967}< \frac{1973}{1975}\)

a/ 50⁷>49⁷=(7²)⁷=7¹⁴ 

=> 50⁷>7¹⁴

b/ 124¹⁰ < 125¹⁰=(5³)¹⁰=5³⁰ 

=> 124¹⁰ < 5³⁰

c/ 9²¹=(3²)²¹=3⁴²

729⁷=(3⁶)⁷=3⁴²

=> 9²¹ = 729⁷

a)\(3^{75}=3^{25.3}=\left(3^3\right)^{25}=27^{25}\)

\(4^{50}=4^{25.2}=\left(4^2\right)^{25}=16^{25}\)

Ta có 2 kết quả trên cùng số mũ mà:27>16.

Vậy \(3^{75}>4^{50}\)

b)\(2^{31}< 2^{32}=2^{4.8}=\left(2^4\right)^8=16^8\)

\(3^{21}=3^{7.3}=\left(3^3\right)^7=27^7\)

\(3^{21}=27^7>16^8>2^{31}\)

Vậy \(3^{21}>2^{31}\)

Chúc em học tốt^^

Cảm ơn bạn nhé!

a . 21/70 = 3/10 ; 56/96 = 7/12 ; 60/72 = 15/18

Mình chỉ làm tới đây thôi .