20/5+50/7
更新1:
and 5/4+98=?
Help me!
回答 (5)
2006-11-19 10:56 pm
✔ 最佳答案
中文係咪叫通分....???20/5+50/7
(20/5)x7+(50/7)x5
140/35+250/35
390/35
78/7
將分母通做35
同分母就可以相加
但係分母乘左幾多
分子都要乘番幾多
or
20/5+50/7
4+50/7
28/7+50/7
78/7
(20/5=4)
2006-11-19 10:54 pm
20/5+50/7:
= 4+ 7.142
= 11.142
* 這個符號--> / is the meaning of ÷ in math
= 4+ 7.142
= 11.142
* 這個符號--> / is the meaning of ÷ in math
參考: myself
2006-11-19 10:52 pm
20/5 + 50/7
= 140/35 + 250/35
= (140 + 250) / 35
= 390/35
= 11 5/35
= 140/35 + 250/35
= (140 + 250) / 35
= 390/35
= 11 5/35
收錄日期: 2021-04-25 17:11:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061119000051KK02778