Fraction Discs
Virtual fraction discs from one whole to twelfths: parts of a whole, equivalent fractions, adding fractions, percentages and angles.
Free, runs in the browser, no sign-in or installation.
- Subject
- Mathematics
- Area
- Numbers
- Level
- Primary school
What you can do
- Tap a piece, from one whole to a twelfth, to add it to the current disc; a new disc starts when it is full or after New disc.
- Each disc shows the total of its pieces, and a disc dragged onto another joins it if together they are no more than one whole.
- Label the pieces with fractions, decimals, percentages or degrees, so the discs also work for percentages and angles.
- Detach, copy or delete pieces, turn on clock marks and write on the workspace with a pen.
- Download the workspace as a PNG with a white or transparent background for a worksheet or presentation.
Pictures in the Gallery3
Ready-made pictures made in this app, to download as PNG.
Worksheets and lessons
Lessons with worksheets that use this app.
More apps: Numbers
Number LineFractions, decimals, negative numbers, intervals and inequalities on a number line.
Decimal ZoomDecimals on a zooming number line: placing, comparing and rounding.
Decimal GridDecimals on a hundred grid: fractions, percentages, comparing and calculating.
Hundred ChartMultiples, primes and the sieve of Eratosthenes on a chart of numbers to 100.
Factors and Prime FactorsFactor pairs from rectangles, factor trees and prime factorisation.
Place Value BlocksBase ten blocks for place value, regrouping, decimals and comparing numbers.
