Pieter likes to put 2 1/3 tablespoons of flaxseed on his morning cereal as a health supplement. How much flaxseed does he need for a 30 day supply?

To calculate the amount of flaxseed Pieter needs for a 30-day supply, we need to find out the total amount he consumes in a day and then multiply it by 30.

Pieter puts 2 1/3 tablespoons of flaxseed on his cereal every day. We can convert this mixed number to an improper fraction: 2 1/3 = (2*3 + 1)/3 = 7/3.

So, Pieter consumes 7/3 tablespoons of flaxseed per day.

To find out how much flaxseed Pieter needs for a 30-day supply, we multiply the amount he consumes per day by 30: (7/3) * 30 = 7 * 10 = 70.

Therefore, Pieter needs 70 tablespoons of flaxseed for a 30-day supply.