小红每6天去一次公园,小明每7天去一次公园,他们那天能碰上面
小红每6天去一次公园,小明每7天去一次公园,他们那天能碰上面
数学人气:360 ℃时间:2020-01-29 16:46:19
优质解答
相当于求最小公倍数,6×7=42天
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