Question

There is 1/4 ounce of yeast in every 2 1/4 teaspoons of years. A recipe for bread calls for 2 teaspoons of yeast. How many ounces of yeast are needed for this recipe??

Answer 1

`(1)/(4)\ ounce\ of\ yeast\ in\ 2(1)/(4)teaspoons\ of\ years\\ x\ ounces\ of\ yeast\ in\ 2\ teaspoon\ of \ years\\\\ proportion:\\ (1)/(4)\ -2(1)/(4)\\ x-2\\\\cross\ multiplication\\\\ 2*\ (1)/(4)=2(1)/(4)x\\\\ (1)/(2)=(9)/(4)x\ \ \ | divide\ by\ (9)/(4)\\\\ x=(1)/(2)*(4)/(9)=(2)/(9)\\\\ (2)/(9)\ ounces\ of\ yeast\ are\ needed.`