Question

Calculeaza:
a) 4,5 + 5,(4) : 2/9 =

Answer 1

a) 4,5 + 5,(4) : 2/9 =
=4,5 + 5,(4) : 2/9
= 4,5+5,44444:0,22222
=4,5+24,50
=29

Answer 2

$\displaystyle 4,5+5,(4): \frac{2}{9} = \frac{45}{10} + \frac{49}{9} : \frac{2}{9} = \frac{45}{10} + \frac{49}{9} \cdot \frac{9}{2} = \frac{45}{10} + \frac{441}{18} = \\ \\ = \frac{810}{180} + \frac{4410}{180} = \frac{5220}{180} =29$