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2-66.

On Saturday, Stella worked for two hours helping her mother around the house. She spent of her time doing laundry, of her time cleaning, and the rest of her time working in the yard. How much of her time was spent in the yard? Show all of your work. Use a diagram if it helps.

Draw a rectangle like the one the right. A horizontal rectangle.

How can you subdivide it so you can represent one third and one fourth?
Try this before moving on.

One way to show both fractions is with a diagram: The rectangle divided into 12 equal parts with 3 rows of 4 columns

Copy this diagram and shade  and .

What is left?

The answer is  or minutes.

How can you arrive at this answer without drawing a diagram?

A horizontal rectangle.

The rectangle divided into 12 equal parts with 3 rows of 4 columns