5/17×9/24+9/17×7/24 中间是+吧
=5/17×9/24+7/17×9/24
=（5/17+7/17）×9/24
=12/17×9/24
=9/34333+1/5)×/3×1/5请把题目表达清楚(333+1/5)×1/3×1/5怎么写(333+1/5)×1/3×1/5这题没有简便不简便怎么写呢写出悬赏金归你(333+1/5)×1/3×1/5=333×1/3×1/5+1/5×1/3×1/5=111/5+1/75=1666/75O(∩_∩)O谢谢。悬赏金归你