i need help with how to solve this, i know the answer and stuff but pls help me solve it with steps

Answer:
1 1/2 cups
Step-by-step explanation:
We can use ratios to solve
2/3 cup seed x cups seed
-------------------- = -------------------
4 cups mix 9 cups mix
Using cross products
2/3 *9 = 4x
6 = 4x
Divide by 4
6/4 = x
1 2/4 =x
1 1/2 =x
A. 1/1/2 cups
Step-by-step explanation:
So we know:
2/3 cup of sunflower seeds = 4 cups of trail mix
We need to find:
? cups of sunflower seeds = 9 cups of trail mix
Firstly, we find how many cup of seeds for 1 cup of trail mix:
? cup of sunflower seeds = 1 cup of trail mix
This we do by:
2/3 ÷ 4 = 1/6
so now we got,
1/6 cups of sunflower seeds = 1 cup of trail mix
now multiply by what we need to find (the 9 cups of trail mix) so the full answer will be
2/3 ÷ 4 = 1/6
1/6 x 9 = 1/1/2