Subtracting Fractions (Common denominator) BOOM Cards – Digital Task Cards These 24 digital task cards on the BOOM Learning website cover subtracting fractions with like denominators. These digital task cards can be would be great on a laptop, desktop, Chromebook, tablet, or any other mobile device that can access the internet. They can even be used on your Smart Board and assigned through Google Classroom and Seesaw. Here’s the best part - they are self-grading and allow you to track student pr