Question

42mL=几分之几L？

Answer 1

解：42mL等于（ 21/500 ）L
∵已知需求出42mL等于几分之几L
1毫升(ml) = 1 × 0.001 = 0.001升(l)
∴42mL = 42 × 0.001
= 42 × 1/1000
= 42/1000
= （21×2）/（500×2）
= 21/500L
答：42mL等于21/500L

Answer 2

42mL=0.042L=42/1000L=21/500L
答案即为五百分之二十一升，谢谢采纳

Answer 3

1L=1000mL
42mL=0.042L=42/1000L=21/500L

答案即为21/500升，谢谢采纳

Answer 4

1L=1000ml
所以
42ml=42/1000=21/500L

Answer 5

42mL=500分之21L。