what was the mass of the reactants before the reaction

Suppose a student performed a precipitation reaction and isolated his precipitate. Given the data in the table below what was the mass of the reactants before the reaction? Assume no mass loss during the isolation of the precipitate.Do I just add the flask and precipitate?mass of empty flask54.275 gmass of precipitate1.240 gmass of flask and contents after isolating precipitate122.488 g