(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/01 07:47:16
(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?(-21

(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?
(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?

(-217又7/9)-(-7)和-22/7x(7/22-4/3)x7/22÷(-22/21)呢?
(-217又7/9)-(-7)
=-217又7/9+7
=-210又7/9
-22/7x(22/7-22/3)x7/22÷(-22/21)
=(22/7-22/3)×21/22
=22/7×21/22-22/3×21/22
=3-7
=-4