This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: To subtract fractions, we usually first find a common denominator. Find two different common denominators for $\frac{1}{2}$ and $\frac{1}{14}$ Use each...

Non-profit Tax ID # 203478467