Expressing as a Ratio Worksheet B The worksheet

Expressing as a Ratio – Worksheet B The worksheet is in 2 sizes.

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Shading Rectangles This rectangle is shaded in This rectangle is also shaded in the ratio 1: 2 Describe! Pick the ratio each rectangle below is shaded with. 1: 4 1: 3 2: 5 3: 4 7: 2 1: 1 4: 5 The ratio 1: 2 means “shade one square, leave two white”. A) Can you shade these rectangles in the ratio 1: 2 ? B) Can you shade these rectangles in the ratio 1: 3 ? Investigate! How many different ratios can you use to shade this rectangle? What do you notice about rectangles you can’t shade with the ratios? C) Shade these 2 rectangles in the ratio 2: 3 D) Shade these 2 rectangles in the ratio 5: 1 To investigate, draw rectangles in your book… What is the smallest rectangle you can shade with these pairs of ratios? 1 : 1 and 1 : 2 ? 1 : 2 and 1 : 3 ? 1 : 2 and 1 : 4 ? 1 : 3 and 1 : 4 ? 1 : 1 and 1 : 2 and 1 : 3 and 1 : 4 ?

Shading Rectangles This rectangle is shaded in This rectangle is also shaded in the ratio 1: 2 The ratio 1: 2 means “shade one square, leave two white”. A) Can you shade these rectangles in the ratio 1: 2 ? B) Can you shade these rectangles in the ratio 1: 3 ? What do you notice about rectangles you can’t shade with the ratios? C) Shade these 2 rectangles in the ratio 2: 3 D) Shade these 2 rectangles in the ratio 5: 1

Shading Rectangles This rectangle is shaded in This rectangle is also shaded in the ratio 1: 2 Describe! Pick the ratio each rectangle below is shaded with. 1: 4 1: 3 2: 5 3: 4 7: 2 1: 1 4: 5 3: 4 4: 5 1: 3 The ratio 1: 2 means “shade one square, leave two white”. A) Can you shade these rectangles in the ratio 1: 2 ? 2: 5 1: 1 1: 4 B) Can you shade these rectangles in the ratio 1: 3 ? 7: 2 Investigate! How many different ratios can you use to shade this rectangle? 1: 1 1: 2 1: 3 1: 5 1: 11 1: 1 2: 1 3: 1 5: 1 11: 1 What do you notice about rectangles you can’t shade with the ratios? C) Shade these 2 rectangles in the ratio 2: 3 D) Shade these 2 rectangles in the ratio 5: 1 To investigate, draw rectangles in your book… What is the smallest rectangle you can shade with these pairs of ratios? 1 : 1 and 1 : 2 ? 6 squares 1 : 2 and 1 : 4 ? 15 squares 1 : 2 and 1 : 3 ? 12 squares 1 : 3 and 1 : 4 ? 20 squares 1 : 1 and 1 : 2 and 1 : 3 and 1 : 4 ? 60 squares

Shading Rectangles This rectangle is shaded in This rectangle is also shaded in the ratio 1: 2 Describe! Pick the ratio each rectangle below is shaded with. 1: 4 1: 3 2: 5 3: 4 7: 2 1: 1 4: 5 The ratio 1: 2 means “shade one square, leave two white”. A) Can you shade these rectangles in the ratio 1: 2 ? B) Can you shade these rectangles in the ratio 1: 3 ? Investigate! How many different ratios can you use to shade this rectangle? What do you notice about rectangles you can’t shade with the ratios? C) Shade these 2 rectangles in the ratio 2: 3 D) Shade these 2 rectangles in the ratio 5: 1 To investigate, draw rectangles in your book… What is the smallest rectangle you can shade with these pairs of ratios? 1 : 1 and 1 : 2 ? 1 : 2 and 1 : 3 ? 1 : 2 and 1 : 4 ? 1 : 3 and 1 : 4 ? 1 : 1 and 1 : 2 and 1 : 3 and 1 : 4 ?

Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk