iKnowIt math activity: Adding fractions with unlike denominators, 2/4 + 2/8 = 3/4.
A screenshot of an iKnowIt math exercise showing the addition of fractions with unlike denominators, where 2/4 + 2/8 is being solved, with the user inputting 3/4 as the answer. The interface includes a "Hint" button, a "Submit" button, and a progress tracker showing 10 out of 15 completed and a score of 1. A cartoon robot character is visible on the right side.