Sum of the masses on LHS;

Mass of one _{0}n^{1} (neutron) = 1.0086654 u

Mass of one _{92}U^{235} = 235.0439299 u

Total mass on LHS = 236.0525953 u

Mass of _{36}Kr^{92} = 91.92615621 u

Mass of _{56}Ba^{141} = 140.9144110 u

Mass of 3 neutrons = 3 × 1.0086654 = 3.0259962 u

Total mass on RHS = 235.8665634 u

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