The Cake Problem

Equivalent and Simplified Fractions

Illustrated by Davilyn Lynch
Published by Clavis Publishing
Distributed by Simon & Schuster

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About The Book

“Entertaining, goofy illustrations, quick reviews of equivalent and simplified fractions, and a few practice problems effectively round out this fun refresher.” —Booklist

A CBC 2026 KIDS FAVORITES Winner!

Farmer Ed brings Sheep, Chicken, and Goat a chocolate cake. Delicious! But hold on; it’s not a circle or rectangle, like most cakes. Dividing this cake is going to be tricky. Luckily, Goat has the solution. If the cake is cut in half, Goat gets one half and Sheep and Chicken share the other half. Easy peasy, milk and cheesy! Or is there a better way?

A hilarious comic that shows how much fun math can be. For math fans and non-math fans ages 7 years and up.

As the third book in the Hilariously Simple Math series, it combines the charm of a graphic novel with the format of a picture book. Written by former math teacher and award-winning author Bill Wise, who contributed to Scholastic Math magazine for 10 years, this STEM-focused book is not only great for the classroom but also supports learning at home. With engaging illustrations, silly jokes, and lovable animal characters, it’s perfect for kids who love both math and animals. The end papers feature a summary, and examples of the mathematical concepts presented, making this a valuable resource for both education and entertainment. This book is also available in Spanish as El problema del pastel. Fracciones equivalentes y simplificadas.

About The Author

Bill Wise (1958) is a retired middle school teacher who has written seven children’s books, including the award-winning biography Louis Sockalexis, Native American Baseball Pioneer. The Pigpen Problem is the first of a series of Clavis Publishing comic books that feature math concepts. As a former teacher, Bill likes to write books that are both entertaining and educational. When not writing, he enjoys spending time with his family. Bill lives in Maine, with his wife Mary Ann.

About The Illustrator

Davilyn Lynch was born and raised in Melbourne, Australia, where she spent most days drawing. She grew up in an inspiring household surrounded by her father’s abstract canvasses. After the birth of her first child, she rediscovered her love of drawing. With the support of her husband and close friends, she made her dream a reality and became a fulltime illustrator. Davilyn is self-taught, allowing her passion and creativity to be her guide.

Product Details

  • Publisher: Clavis Publishing (July 22, 2025)
  • Length: 32 pages
  • ISBN13: 9798890630285
  • Ages: 7 - 12
  • Lexile ® GN530L The Lexile reading levels have been certified by the Lexile developer, MetaMetrics®

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Raves and Reviews

This comic-inspired picture book spends a lot of time on satisfying silliness and a comparatively small amount on actual math, helping this fraction reinforcement lesson go down nice and easy. Goat insists he knows how to divide a hexagonal birthday cake evenly between himself and his two friends, Chicken and Sheep. He enthusiastically plunges right in, cutting the cake in half, and is immediately stymied. After being reminded of a couple of other recent disastrous decisions (giving some foxes the keys to the henhouse so they could tidy up; putting roller skates on the horses to save wear and tear on their hooves), Goat admits he may need some help. Sheep steps in to save the day and models how to make two more cuts to produce three equal pieces. The three friends sit down to enjoy their cake when Farmer Ed shows up with another dessert—a triangular piece of cake. Entertaining, goofy illustrations, quick reviews of equivalent and simplified fractions, and a few practice problems effectively round out this fun refresher.

– Booklist

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More books from this author: Bill Wise

More books in this series: Hilariously Simple Math

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