Arithmetic Grade Five

Lesson One Hundred and Sixteen: Mixed and Fraction Division

You should think about why the problems in this lesson all have answers which are whole numbers.

Here's another example for you to study: 


	ORIGINAL PROBLEM: 			2 1/6 ÷ 1/6 =

	CONVERT MIXED TO IMPROPER:		13/6 ÷ 1/6 =

	FLIP and CHANGE OPERATION:		13/6 * 6/1 =

	REDUCE (if possible):			13/1 * 1/1 =

	MULTIPLY:				13
In the last problem we had to find how many sixths would fit into two and one-sixth. When we convert two and one-sixth to thirteen-sixths, the answer becomes apparent. How many sixths can you get out of thirteen-sixths?

Here's another example: 


	ORIGINAL PROBLEM: 			2 1/5 ÷ 1/5 =

	CONVERT MIXED TO IMPROPER:		11/5 ÷ 1/5 =

	FLIP and CHANGE OPERATION:		11/5 * 5/1

	REDUCE (if possible):			11/1 * 1/1 =

	MULTIPLY:				11

Now you get to try a few.

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