mohon dibantu yah jawabannya

= ( 3 x 0,5 kg ) - (5/8 kg + 2 1/2 kg)
= 1,5 kg - (0,625 kg + 2,5 kg)
= 1,5 kg - 2,825 kg
= (-1,325 kg)
=1.325/1.000 kg
=1 13/40
( maaf kalau salah )