First you convert kilograms to pounds, 1 kilogram = 2.205 pounds next you times the number of pounds per kilogram by the number of kilograms given that need to be turned into pounds. 80 times 2.205 = 176.4 next you subtract to get the answer 176.4 - 135= 41.4 so Ms. Johnson weighs 41.4 pounds less than herr husband