Question

1)Daca a=1 supra 2 + 1 supra 3 + 1 supra 4=
b=1 supra 2 + 3 supra 2 + 4 supra 4=
Afla a + b
2)Transformati 2,40m = kl
Va rog ajutatima!!

Answer 1

1.
$a + b = \frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{2} + \frac{3}{2} + \frac{4}{4} = \\ \frac{5}{2} + \frac{1}{3} + \frac{5}{4} = \\ \frac{30}{12} + \frac{4}{12} + \frac{15}{12} = \frac{49}{12}$


2) 2,40 m = 0,00240 km