2
3
+
2
3
+
2
3
+
2
3
+
2
3
=
2
3
2
3
×
5
5
=
3
1
3
3
1
3
分析:分?jǐn)?shù)乘整數(shù)的意義與整數(shù)乘法的意義相同,就是求幾個(gè)相同加數(shù)的和的簡(jiǎn)便運(yùn)算,據(jù)此解答即可.
解答:解:
2
3
+
2
3
+
2
3
+
2
3
+
2
3
=
2
3
×5=3
1
3

故答案為:
2
3
、5、3
1
3
點(diǎn)評(píng):此題主要考查分?jǐn)?shù)乘法的意義解決問(wèn)題.
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