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Lesson 2: Fractions of shapes

# Halves and fourths

When a whole is divided into equal size pieces, the pieces are fractions of the whole. If the whole is divided into 2 equal sized pieces, each piece is ​one half of the whole. If the whole is divided into 4 equal sized pieces, each piece is one fourth of the whole.

## Want to join the conversation?

• Are halves two equal parts or it just need to be two parts?
• In maths, it would be two perfectly equal halves, but it really depends on context.

In most case, you would think that halves (and fourths) are equal, like you would think that a half of a pizza is... a half, not some random dusts left over. That random dusts and the part that have been eaten are two parts, but they are not equal, right?

Moreover, some shapes cannot be divided into two halves. They are asymmetric shapes, which do not contain a line of symmetry. A circle, yes, there are halves and quarters. However, a hand, I don't think so.
• How many halves would I need to add to make 7?
• you would need 14 halves of one. Whivh means 14 1/2's.
• do they have to be equal
• Yes all the parts should be equal, and also sum of all the parts should be equal to original diagram.
• Is quarters the same as money quarters?
• Yes they are similar. A quarter is a quarter of a dollar which is \$.25
• If a shape is irregular can you still split it in half?
• Every shape, no matter how complicated it is can be split in any number of parts, it just gets harder as shapes get more complicated (a lot harder).
• why is math so hard and confusing
• Its not its lovely
• So the critical part is 'equal'?
• Yes, the parts need to be equal in order to represent fractions properly. For example, if the whole is divided into 4 unequal parts, some parts will be larger than one-fourth and some will be smaller than one-fourth.

Have a blessed, wonderful day!
• Are fourths as big as a third because, I normally see a third like a fourth
• A fourth is smaller than a third. :)
• Guys? whats a half?