Math Pie Pieces Fraction Circle

[Updated 2026-02-02: released additional part: “1-7 pie", a requested missing fraction for the set, description updated.]

Notes:

• A compact version was made that can carry all the pie pieces in one container here: Compact-Math-Pie-Fractions

• Simple to print fraction circle designed to teach kids in math

• Learn basic fractions, equivalency, and angles through pie slices

• The pie tin body can be used as a dish for a fraction circle

• Includes: 1/1, ½, ⅓, ¼, 1/5, 1/6, 1/7, 1/8, 1/9, and 1/10 

Printing:

• I printed with 0.4noz, 0.2layerh, 10% gyroid infill, mix of PLA, but mostly PETG

• It is suggested to change the bridging angle (45 degrees recommended) so that the orientation of the pie slice's lettering that overhang will print in better quality (For Prusaslicer>Print Settings>Infill>Advanced>Bridging angle)

• If desired, color changes start at 1.00mm (and change back after another 1.00mm to original color) for lettering to stand out (be sure to double check the color in the slicer!)