Chapter 42 - Nuclear Physics - Exercises and Problems - Page 1274: 8

For $^{3}$H, binding energy B.E. = 8.57 MeV, binding energy per nucleon = 2.857 MeV per nucleon. For $^{3}$He, binding energy B.E. = 7.731 MeV, binding energy per nucleon = 2.577 MeV per nucleon.

Step by step calculation is given in the attached file.