Hannah has one-third of a
rectangle. How many more thirds does she need
to make the whole rectangle?
In this question, we’re shown a
rectangle. And we’re told that Hannah has
shaded one-third of it. We’re asked how many more thirds
she needs to make a whole rectangle. We sketched a rectangle and shaded
one-third. If we divide a shape into three
equal parts, we call each part a third. So, Hannah’s rectangle needs three
equal parts. Here’s one, two, three. We’ve divided Hannah’s rectangle
into thirds or three equal parts.
Hannah had a third of a
rectangle. She needed two more thirds to make
a whole rectangle. We know that a third is one of
three equal parts. We need three thirds to make one
whole shape. If Hannah has one-third of a
rectangle, she needs two more thirds to make a whole rectangle.