A bottle of ketchup has a net weight of 40 ounces. A serving is 2/3 ounce. How many servings are in a bottle?

Question

A bottle of ketchup has a net weight of 40 ounces. A serving is 2/3 ounce. How many servings are in the bottle?

Answer 1

The servings can be determined by taking the total amount (40 oz) and dividing it by 1 serving (2/3 oz).

 

40 oz / (2/3 oz) = 60 servings in the bottle of ketchup

Answer 2

Imagine that the serving size was 10 ounces. Then there would be 4 servings: 10+10+10+10=40. How could we solve this, with division! 40/10 = 4.

4 is the number of servings.

 

Now, with the actual numbers: 40 / (2/3) = 60.

There are 60 servings. (Try multiplying 2/3 * 60 to confirm the answer.)

 

If you don't know how to divide 40 / (2/3), dividing by a fraction is the same as multiplying by its reciprocal.

That is, 40 / (2/3) = 40 * (3/2).

40 * (3/2)   =   (40/1) * (3/2)   =   (40*3) / (1*2)  =  120/2  =  60