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Pizza Portions

My friends and I love pizza. Can you help us share these pizzas equally?

Doughnut

How can you cut a doughnut into 8 equal pieces with only three cuts of a knife?

Pies

Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

Rectangle Tangle

Age 7 to 11
Challenge Level


 

The large rectangle above is divided into a series of smaller quadrilaterals and triangles. Each of the shapes is a fractional part of the large rectangle.

Can you untangle what fractional part is represented by each of the ten numbered shapes?


The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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NRICH is part of the family of activities in the Millennium Mathematics Project.