40 dm is more precise as it includes units - it refers to a length whereas 403 could refer to anything.
40 dm
the right answer is 40 decimeter i think i know take my word
mm is more precise than dm. 100 mm is 1 dm.
Very surprising, perhaps, but the answer is 403.
40/403 is in its simplest form.
decimeters * * * * * Actually, 238 cm = 23.8 dm so 238 cm is more precise.
40 dm = 400 cm
40 dm
No.
There are 10 dm per meter; so divide 40 dm by 10 to get 4 meters.
400 dm is 40 m
40dm