Question

Fie a si b numere naturale nenule,a<5,b<7.Determinați toate fractiile de forma a supra b care sa fie:
a)subunitare
b)echiunitare
c)supraunitare​

Answer 1

a<5=>a€{ 1, 2, 3, 4}

b<7=>b€{1, 2, 3, 4, 5, 6}

a)

$\frac{1}{2} \frac{1}{3} ... \frac{1}{6}$

$\frac{2}{3} \frac{2}{4} ... \frac{2}{6}$

$\frac{3}{4} \frac{3}{5} \frac{3}{6}$

$\frac{4}{5} \frac{4}{6}$

$\frac{5}{6}$

b)

$\frac{1}{1} \frac{2}{2} \frac{3}{3} \frac{4}{4}$

c)

$\frac{2}{1} \frac{3}{1} \frac{4}{1} \frac{3}{2} \frac{4}{2} \frac{4}{3}$