a chemist mixes 2 3/5 of an element and 14 4/9 of another element. When the two are mixed what is the total mass in simplest form?

Answer 1

I forgot to add
A. 18 1/2
B. 18 2/45
C. 19 2/45
D. 18 1/4
which is correct?

Answer 2

the LCD of 3/5 and 4/9 is 45.
So, you have
2 27/45 + 14 20/45
I suspect a typo.

Answer 3

Wow. Thanks for the help🙄