把下面的分数化成百分数.(除不尽的百分号前保留一位小数) =________ | =________ |
=________ | =________ |
________ | ________. |
分析:把分数化百分数,先用分数的分子除以分母得出小数商,除不尽时通常保留三位小数,再把小数点向右移动两位,同时填上百分号.
解答:
解: =50%, | =37.5%, |
=70%, | =160%, |
33.3%, | 216.7%. |
点评:此题考查分数化百分数方法的灵活运用.
编辑:chaxungu时间:2026-04-27 09:07:37分类:小学数学题库
把下面的分数化成百分数.(除不尽的百分号前保留一位小数) =________ | =________ |
=________ | =________ |
________ | ________. |
解: =50%, | =37.5%, |
=70%, | =160%, |
33.3%, | 216.7%. |