It would be: 2/3 - 1/5 Step.1 - Take the LCM of Denominators, i.e., 3 & 5, which will be 15. Step.2 - Now, Divide that with denominators & multiply the answer with numerator as follows:  (10 - 3) / 15 = 7/15 So, your final answer is 7/15 Hope this helps!