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What is the answer in simplest form:4 gal 1qt- 1gal 3 qt=?

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zero0master | Student, Grade 9

Posted November 25, 2008 at 4:35 AM via web

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What is the answer in simplest form:

4 gal 1qt- 1gal 3 qt=?

5 Answers | Add Yours

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ladyvols1 | High School Teacher | (Level 3) Senior Educator

Posted November 25, 2008 at 4:48 AM (Answer #1)

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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.

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ebbie479 | Elementary School Teacher

Posted November 26, 2008 at 8:35 AM (Answer #2)

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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.

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revolution | College Teacher

Posted July 17, 2010 at 7:55 PM (Answer #3)

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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

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atyourservice | Student, Grade 10

Posted May 28, 2014 at 9:52 PM (Answer #4)

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convert the gallons into quarts

4 quarts = 1 gallon

4 gal 1qt = 17 quarts

1gal 3 qt = 7 quarts

17qt - 7qt = 10qt

you can either leave it as 10qt or dive 10 by 4 to get the measurement in gallon which would be 2.5 gallons

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Wiggin42 | Student, Grade 11

Posted May 31, 2014 at 8:38 PM (Answer #5)

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4 gal 1qt - 1gal 3 qt =

Covert the first term ( 4 gal 1 qt) into  3 gal 5 qt . 

Now the subtraction is made much easier: 

3 gal 5 qt - 1 qal 3 qt = 2 gal 2qt

If you want, we can express this as a decimal : 2.5 gal. 

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