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3
11
+
3
11
+
3
11
=
3
11
3
11
×
3
3
=
9
11
9
11
分析:
3
11
+
3
11
+
3
11
表示3个
3
11
是多少,根据分数乘整数的意义,用
3
11
×3计算,进而得解.
解答:解:
3
11
+
3
11
+
3
11
=
3
11
×3=
9
11

故答案为:
3
11
,3,
9
11
点评:此题考查分数乘整数的意义,与整数乘法的意义相同,就是求几个相同加数和的简便运算.
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