close
標題:
Help me!
發問:
此文章來自奇摩知識+如有不便請留言告知
How to do this sum? 20/5+50/7 更新: and 5/4+98=?
最佳解答:
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)
其他解答:
140/35+250/35 =390/35|||||20/5+50/7: = 4+ 7.142 = 11.142 * 這個符號--> / is the meaning of ÷ in math|||||20/5 + 50/7 = 140/35 + 250/35 = (140 + 250) / 35 = 390/35 = 11 5/35|||||20/5+50/7 =140/35+250/35 =390/35 =78/7
文章標籤
全站熱搜
留言列表
