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可视化比较分数复习

用分数模型和数轴复习等值分数的比较, 并且试着做一些习题.

比较分数

我们可以通过占据整体的份数大小来比较分数.

使用分数模型比较分数

看一个例子:
比较start fraction, 4, divided by, 6, end fractionstart fraction, 6, divided by, 9, end fraction, 使用is greater than, comma, is less than, commaequals .
首先, 把大小相同的两个圆平均分成六份和九份.
然后, 在六等分圆中涂 4 份表示start color #11accd, start fraction, 4, divided by, 6, end fraction, end color #11accd , 在九等分圆中涂 6 份表示 start color #1fab54, start fraction, 6, divided by, 9, end fraction, end color #1fab54.
显示出两个分数占据整体的比例相同. 所以两分数是相等的.
start color #11accd, start fraction, 4, divided by, 6, end fraction, end color #11accd, equals, start color #1fab54, start fraction, 6, divided by, 9, end fraction, end color #1fab54
想要了解更多关于使用分数模型比较分数吗? 查看 视频.

使用数轴比较分数

看一个例子:
比较start fraction, 5, divided by, 3, end fractionstart fraction, 9, divided by, 6, end fraction, 使用is greater than, comma, is less than, commaequals .
想一想各个分数该如何放置在数轴上.
在数轴上start color #11accd, start fraction, 5, divided by, 3, end fraction, end color #11accd 位于 start color #1fab54, start fraction, 9, divided by, 6, end fraction, end color #1fab54 右边 , 所以 start color #11accd, start fraction, 5, divided by, 3, end fraction, end color #11accd 大于 start color #1fab54, start fraction, 9, divided by, 6, end fraction, end color #1fab54
start color #11accd, start fraction, 5, divided by, 3, end fraction, end color #11accd, is greater than, start color #1fab54, start fraction, 9, divided by, 6, end fraction, end color #1fab54
想要了解更多使用数轴比较分数吗? 查看 视频.

练习

问题1
  • 当前
使用 is greater than, comma, is less than, commaequals 比较分数。
提示: 通过将下面的长方形涂色帮助比较分数.
start fraction, 3, divided by, 4, end fraction
start fraction, 4, divided by, 5, end fraction

想做更多此类练习? 点击 练习.