Question

4 supra 5 + 9 supra 1 repede va rog

Answer 1

$\dfrac{4}{5} + \dfrac{9}{1} = \dfrac{4}{5} + \dfrac{5\cdot 9}{5\cdot 1} = \\ \\ =\dfrac{4}{5} + \dfrac{45}{5} = \dfrac{4+45}{5} = \dfrac{49}{5}$