Give the students a couple of minutes to compute the above problem. Have a
student come to the front of the room and solve the problem and explain how they
obtained their answer. The answer is 6/10 or 3/5. (they previously have learned
how to reduce fractions) Give two more examples for them to work with
subtracting fractions with common denominators. 23/25 – 2/25 and 3/6 – 1/6. If
they need more time give them more time.