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Can you express every recurring decimal as a fraction?

Equal Equilateral Triangles

Can you make a regular hexagon from yellow triangles the same size as a regular hexagon made from green triangles ?

The Square Hole

If the yellow equilateral triangle is taken as the unit for area, what size is the hole ?

Rationals Between...

Age 14 to 16
Challenge Level

If you are walking along a number line, how far apart are the thirds, quarters, fifths... hundredths?