40 hektoliter + 15 liter = ... dm³ plz pake cara help me plz

40 hl=40×100=4000 dm3
15 liter=15 dm3

=4000+15
=4015 dm3

1 liter = 1 dm^3

40 hl = 40 × 100 liter
= 4.000 liter = 4.000 dm^3

4.000 dm^3 + 15 dm^3 =
4.015 dm^3

SEMOGA MEMBANTU :)