---
title: "Fractions as parts of shapes"
description: "Partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole"
canonical: https://lightmysky.com/learn/mathematics/fractions-as-parts-of-shapes-mt_idbKDrf9qZ
source: https://lightmysky.com/learn/mathematics/fractions-as-parts-of-shapes-mt_idbKDrf9qZ.md
retrieved: 2026-10-19
---

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# Fractions as parts of shapes

Partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole

Subject: Mathematics · Area: Fractions · Ages 8 to 9
Page: https://lightmysky.com/learn/mathematics/fractions-as-parts-of-shapes-mt_idbKDrf9qZ

## Ready when they can

- Partition a rectangle into 6 equal-area parts and label each 1/6
- Show two different ways to partition a square into 4 equal parts
- Given a pre-partitioned shape, write the unit fraction for one part

## Lesson: Fractions as parts of shapes

You already know how to split a shape into equal parts. Now you will give each part a name using a fraction. When every part has the same area, one single part is called a unit fraction of the whole shape.

*(drawing: This bar is split into 6 equal-area parts. One shaded part is 1/6 of the whole bar.)*

**Example.** Mia cuts a square into 4 equal-area parts two different ways. First she cuts it into 4 equal columns, side by side. Then she cuts the same size square into 4 equal triangles that meet in the middle. Both squares end up with 4 equal parts, so one part is still called 1/4 in each case, even though the pieces look different.

**Tip.** If you are given a shape that is already cut into parts, count how many equal parts there are in all. That total number becomes the bottom of the fraction, and 1 becomes the top for a single part.

**Recap.** Count the equal parts in a shape, and one part out of that total is its unit fraction.

## Practice

18 questions on this page, each with its working shown.

## Needs first

- [Fractions of a whole](https://lightmysky.com/learn/mathematics/fractions-of-a-whole-mt_ndGqFPWyen)
- [Splitting shapes into equal parts (age 7+)](https://lightmysky.com/learn/mathematics/splitting-shapes-into-equal-parts-age-7-mt_Xp-rj46S2w)

## Opens up

- [Area with Fractions](https://lightmysky.com/learn/mathematics/area-with-fractions-mt_gx6KQK5-Kx)
