“This was the best money I have ever spent on a teaching tool.” ~ a teacher in Wisconsin

KAS Math Standard: KY.6.NS.4

Use the distributive property to express a sum of two whole numbers 1 – 100 with a common factor as a multiple of a sum of two whole numbers with no common factor.

Broken Calculator: Simplifying Fractions

Broken Calculator: Simplifying Fractions

This calculator simplifies fractions with a rule that sometimes works. What is it doing wrong?