Question

1/5+8/5=???????? помогите

Answer 1

$frac{1}{5} + frac{8}{5} = frac{9}{5}$=1 4/5

Answer 2

почему?

Answer 3

изи пример

Answer 4

$frac{1}{5} + frac{8}{5} = frac{2}{10} + frac{16}{10} = frac{18}{10} = 1.8$