问题
问答题
小明上学路上用了15min，合______h，我校一节课的时间为40min，合______S．
答案
①∵1min=
h，∴15min=15×1 60
h=0.25h；1 60
②∵1min=60s，∴40min=40×60s=2400s．
故答案为：0.25；2400．
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小明上学路上用了15min，合______h，我校一节课的时间为40min，合______S．
①∵1min=
h，∴15min=15×1 60
h=0.25h；1 60
②∵1min=60s，∴40min=40×60s=2400s．
故答案为：0.25；2400．