3/5-3/2

3/5 - 3/2 = ?

• Use a common denominator: lcm(5,2) = 10
  • 3/5 = 6/10
  • 3/2 = 15/10
  • 6/10 - 15/10 = -9/10

Alternative check using (ad - bc)/bd with a/b - c/d = (ad - bc)/bd:

• (32 - 35) / (5*2) = (6 - 15) / 10 = -9/10

Final answer: -9/10 (or -0.9).