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Q: If i shaded about 18 of rectangles that are different sizes are the shaded parts still the same amount?

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Draw as many rectangles as the whole number you are multiplying by. Then, draw the fraction you are multiplying by in all of the rectangles. Shade in the top number in the fraction [numerator] in your rectangles. Count all the shaded in parts of all your rectangles. Leave the bottom number of your fraction [denominator] the same and put the number you got when you added the shaded parts of the rectangles on top as your denominator of the fraction. That is your answer!

75% shaded; 25% unshaded

35%

If one fifth of a region is not shaded then 4 fifths of the region is shaded. Fifths means there are five parts.

You use proportions

Related questions

You will need to divide the shaded area into smaller parts, such as triangles or rectangles, or find the length of sides of these polygons.

Draw as many rectangles as the whole number you are multiplying by. Then, draw the fraction you are multiplying by in all of the rectangles. Shade in the top number in the fraction [numerator] in your rectangles. Count all the shaded in parts of all your rectangles. Leave the bottom number of your fraction [denominator] the same and put the number you got when you added the shaded parts of the rectangles on top as your denominator of the fraction. That is your answer!

The shaded parts

75% shaded; 25% unshaded

35%

It depends on what the shaded and non-shaded parts look like!

Count how many parts there are in total (both shaded and unshaded) and write this as the denominator (bottom number) of the fraction. Count how many shaded parts there are and write this as the numerator (top number) of the fraction. You now have the fraction of the whole that is shaded.

If one fifth of a region is not shaded then 4 fifths of the region is shaded. Fifths means there are five parts.

4 and a half

I suppose that would depend on being able to see the shaded parts of the figures.

In complete sentnces, explain why you can cut the rectangles into different shapes and still have four equal parts.

There are 15 rectangles.