a bit surprised to see 'de' used here. I would have thought that 'da' would be more fitting when talking about amounts.
It's not an amount. You don't walk into a butcher shop and say "I'd like some 300 please"
"Right away sir - how much 300 would you like?"
"Give me a full third of it."
Fwiw, i got ' "1/3 of 300 is 100" is wrong, should be "1/3 of 300 is 100" '
Wait, is "tri ono" really wrong?
triono (one) third
tri ono three fraction
tri three (3)
It's a bit in the same way as
4 10 (four, ten)
aren't the same.
As if learning a new language isn't difficult enough... I now have to do math as well????
I tried "1/3 of 300 is 100" and got "Almost correct". To be fair to Duolingo, it does cope with a lot.