Question

Scrieti inversele urmatoarelor numere;
a) 11 supra 13
b) 16 supra 7
c) 5 intregi si 2 supra 9
d) 7 intregi si 1 supra 7

Answer 1

a) $\dfrac{11}{13}$→$\dfrac{13}{11}$

b) $\dfrac{16}{7}$→$\dfrac{7}{16}$

c) 5$\dfrac{2}{9}$=$\dfrac{5\cdot 9+2}{9}$=$\dfrac{47}{9}$

$\dfrac{47}{9}$→$\dfrac{9}{47}$

d) 7$\dfrac{1}{7}$=$\dfrac{7\cdot 7+1}{7}$=$\dfrac{50}{7}$

$\dfrac{50}{7}$→$\dfrac{7}{50}$