Answer:
12/46
Step-by-step explanation:
X - the number
3(x+1)=2x+4
3x+3=2x+4
3x-2x=4-3
x=1
Since you have to mix all of it together, the whole cocktail is 20+10+15=45.
And the portion that is coconut milk is 15ml. So that means there is 15 out of 45 or 15/45 coconut milk in the cocktail. Then the simpelest form is 1/3.