WEBVTT
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What fraction is shaded?
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The shape in the diagram is a pentagon.
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We know this because it has five sides.
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But more importantly than this, it’s a pentagon that’s been split into equal parts.
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Each part is a triangle.
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And if we count the number of triangles, we can see that the number of equal parts is five.
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Now, the question asked us to write the fraction of the shape that’s shaded.
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We know that a fraction is made up of two numbers with a line in between.
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The denominator, which is the bottom number, shows the number of equal parts that the shape has been divided into.
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And as we’ve said already, our pentagon has been split into five equal triangles.
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So, we can complete the denominator using the number five.
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The fraction that’s shaded will be a number of fifths.
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The top number in the fraction, which is the numerator, shows the number of selected parts, the number of parts that we’re talking about.
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And in this particular question, we’re talking about the number of parts that are shaded.
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And if we count those, we can see that there are three shaded parts.
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So, the numerator in our fraction will be the number three.
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Three out of five equal parts are shaded, and so we can say that the fraction of the shape that’s shaded is three-fifths.