so what’s the answer (found this on my younger brother’s laptop)

This is latex but not displaying correctly. The answer is c

1/5 + 2/5 = 3/5 => C

Good to see them learning LaTeX young. It's one of those life skills that no one should need, but everybody does need at some point

C of course. Where’s the problem?

⅗

Oh, the good old LaTeX formulas. Once upon a time, I was the unofficial TeX guy at university, now my son is learning the same stuff. And it is still the best quality layout you can get.

༼ つ ◕_◕ ༽つ

(งツ)ว

Looks almost like this.

To add on to the other answers, in latex, \frac creates a fraction and the first curly braces after it turn into the numerator and the second into the denominator.

Moodle