Question

aratati ca x=9 supra 4 - 1 supra 10 impartit la 2 supra 5 este un nr natural

Answer 1

x = 9 / 4 - 1 / 10 : 2 / 5

x = 9 / 4 - 1 / 10 × 5 / 2 → 1 / 10 × 5 / 2 = 5 / 20 = 1 / 4

x = 9 / 4 - 1 / 4

x = 8 / 4

x = 2 ∈ N

Answer 2

x=(9/4)-(1/10):(2/5)=(9/4)-(1/10)x(5/2)=(9/4)-(5/20)=(9/4)-(1/4)=8/4=2, 2∈N