What is the answer in simplest form:

4 gal 1qt- 1gal 3 qt=?

### 3 Answers | Add Yours

Convert 4 gal and 1 qt to 17 qts. Then convert 1 gal and 3 qts to 7 qts. Subtract 7qts. from 17qts. and you have 10qts. Divide by 4 and you have 2 1/2 gals. You have to convert then subtract then take it back to the original measurement. There are 4 quarts in a gallon. When you divide 4 into 10, you will have 2 full gallons, and 2 quarts left over which reduces to 1/2 gallon.

2 1/2 gallons.

There is another way to think of and solve this problem. You are starting out with 4 gal and 1 qt and you need to take away 1 gal and 3 qts. Start by taking away 1 gal from 4 gal 1 qt and you are left with 3 gal 1 qt. Then, you need to take away 3 qts. To do that, think of it as borrowing. You know that there are 4 qts in a gal. So, "borrow" 4 qts from the three gal. That leaves you with 2 gal and, when you add the 4 borowed qts to the one that is there, you have 5 qts. Now you can subtract 3 qts from the 5 qts and are left with 2 gal and 2 qts. 2 qts are equal to a 1/2 gal so in simplest form, the answer is 2 and 1/2 gal.

Convert 4gal1qt= 17 quarts and also 1gal3qt to 7 quarts.

Next, subtract 7 quarts from 17 quarts to get 10 quarts

Since 1 gal= 4 quarts

Divide 10 quarts by4 to get **2.5 gallons**

### Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes