当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙

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当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙k+1/3=(

当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙
当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙

当k=5/7,那k+1/3,3k+1/2各==多少大神们帮帮忙
k+1/3=(5/7+7/7)/3=4/7 3k+1/2=(15/7+7/7)/2=11/7

(k+1)/3=(5/7+1)/3=4/7 (3k+1)/2=(15/7+1)/2=11/7