2又1/3+3又1/4-(2又3/4+3又2/3的算式是什麼??
要算式也要答案!!!急~~~
數學不會!!!求算式
2014-11-25 2:27 am
回答 (2)
2014-11-25 3:59 am
✔ 最佳答案
2又1/3 +3又1/4 -(2又3/4 +3又2/3)= (2又1/3 -3又2/3) +(3又1/4 -2又3/4)
= -(3又2/3 -2又1/3)......大減小比較好算
+1 -2/4......整數跟整數加減，分數跟分數加減
= -(1又1/3) +1/2
= -(1又1/3 -1/2)
= -(1/2 +1/3)
= -5/6
2014-11-25 2:44 am
2又1/3+3又1/4-(2又3/4+3又2/3
=7/3+13/4-11/4-11/3
=(-4)/3+2/4
=(-16)/12+6/12
=(-10)/12
=(-5)/6
A:負6分之5
=7/3+13/4-11/4-11/3
=(-4)/3+2/4
=(-16)/12+6/12
=(-10)/12
=(-5)/6
A:負6分之5
收錄日期: 2021-04-27 21:30:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20141124000016KK03659