45% of almond = 30% of cashew → 0.45A = 0.30C.

• \( \frac{A}{C} = \frac{0.30}{0.45} = \frac{30}{45} = \frac{2}{3} \)
• Almond : Cashew = 2 : 3
• Total parts = 2 + 3 = 5
• Fraction almond = \( \frac{2}{5} \)

Final Answer: \( \frac{2}{5} \)