Math Group
Question:
zero0master
Student
High School - 9th Grade
Answers:
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ladyvols1 Teacher
High School - 9th GradeeNotes Editor
Posted by ladyvols1 on Tuesday November 25, 2008 at 12:48 PMConvert 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.
Sources:
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ebbie479 Teacher
Elementary / PrimaryPosted by ebbie479 on Wednesday November 26, 2008 at 4:35 PMThere 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.
