Question

scrieti toate fractiile de forma a sub b unde a si b sunt numere naturale prime diferite cuprinse intre 20 si 40?

Answer 1

numerele naturale prime cuprinse intre 20 si 40 sunt
23, 29,31, 37
23/29,23/31, 23/37
29/23,  29/31,29/37
31/23,31/29,31/37
37,23,37/29,37/31

Answer 2

     Numere prime cuprinse intre 20 si 40: 23, 29, 31, 37

[tex] \frac{29}{23}, \frac{31}{23}, \frac{37}{23} \\ \\ \frac{23}{29}, \frac{31}{29}, \frac{37}{29} \\ \\ \frac{23}{31}, \frac{29}{31}, \frac{37}{31} \\ \\ \frac{23}{37}, \frac{29}{37}, \frac{31}{37} \\ \\[/tex]