|
ÊÁѤÃÊÁÒªÔ¡ | ¤ÙèÁ×Í¡ÒÃãªé | ÃÒª×èÍÊÁÒªÔ¡ | »¯Ô·Ô¹ | ¢éͤÇÒÁÇѹ¹Õé | ¤é¹ËÒ |
|
à¤Ã×èͧÁ×ͧ͢ËÑÇ¢éÍ | ¤é¹ËÒã¹ËÑÇ¢é͹Õé |
#1
|
|||
|
|||
à©ÅÂ˹èͤÃѺ. (äÁèá¹èã¨)
àÈÉ˹Öè§ÊèǹỴ + àÈÉÊÒÁÊèǹÊÕè
¨ÐÁդӵͺà»ç¹à·èÒäËÃè¤ÃѺ ¤Ã¹¨Ðµéͧãªé㹡óչÕé´éÇÂËÃ×ÍäÁè¤ÃѺ ÍÂÒ¡àËç¹ÇÔ¸ÕËÒ ¤Ã¹ ¢ÍẺËÒÃÊÑ鹤ÃѺ ¢Íº¤Ø³¤ÃѺ |
#2
|
||||
|
||||
ËÅÑ¡¡ÒúǡźàÈÉÊèǹ¤×Í ·ÓãËéµÑÇÊèǹ (Denominator) à·èҡѹ¤ÃѺ
¤.Ã.¹. ¨ÐãªéËÃ×ÍäÁèãªé¡çä´é ã¹·Õè¹ÕéµÑÇÊèǹ¤×Í 8 ¡Ñº 4 «Ö觨Ðä»à·èҡѹ·ÕèµÑÇÊèǹà»ç¹ 8 (¹éÍ·ÕèÊØ´) $\frac{1}{8} + \frac{3}{4} = \frac{1}{8} + \frac{3}{4}\times \frac{2}{2} = \frac{1}{8} + \frac{6}{8} = \frac{7}{8} $ áµè¶éÒÁͧäÁèÍÍ¡ ÍÒ¨¨Ð·ÓẺáÂè æ ˹èÍÂä´éà»ç¹ $\frac{1}{8} + \frac{3}{4} = \frac{1}{8}\times \frac{4}{4} + \frac{3}{4}\times \frac{8}{8} = \frac{4}{32} + \frac{24}{32} = \frac{28}{32} $ áµèµÍº¤èÒ¹Õé äÁèÊÇ µéͧ·ÓãËéà»ç¹àÈÉÊèǹÍÂèÒ§µèÓ¡è͹¤ÃѺ $\frac{28}{32} = \frac{7\times 4}{8 \times 4} = \frac{7}{8} $ note ¤.Ã.¹. ¢Í§ 4 ¡Ñº 8 ¤×Í 8 ¹Ñè¹àͧ¤ÃѺ. |
#3
|
|||
|
|||
¢Í¤Ø³¤ÃѺ
¼ÁäÁèá¹èã¨ÇèÒ·ÕèŧÇԸդӹǹäÇé´éÒ¹ÅèÒ§¹Ñé¹à»ç¹ÊÙµÃËÃ×Íà»ÅèÒ¤ÃѺ.ËÃ×ÍÇèÒà»ç¹·Õèà¤Ã×èͧ¤ÍÁ¼Ô´»¡µÔ àËç¹ÁÕà¤Ã×èͧËÁÒÂà»ç¹ $ ´éǤÃѺ §§àŤÃѺ ( ÂÒ¡¨Ñ§ ) ·ÕèŧãËéà»ç¹ $\frac á·¹¤ÇÒÁËÁÒÂÇèÒÍÐääÃѺ =\frac {1}{8} à»ç¹ àÈÉ˹Öè§ÊèǹỴ ËÃ×ÍäÁè¤ÃѺ »Ãзҹâ·É¹Ð¤ÃѺ ú¡Ç¹ÍÕ¡¢Í¤Ó͸ԺÒÂÍÕ¡¤Ãé駤ÃѺ ¢Íº¤Ø³ÁÒ¡¤ÃѺ $\frac{1}{8} + \frac{3}{4} = \frac{1}{8} + \frac{3}{4}\times \frac{2}{2} = \frac{1}{8} + \frac{6}{8} = \frac{7}{8} |
#4
|
||||
|
||||
¤ÍÁÁÕ»ÑËÒáÅéǤÃѺ Åͧ´Ù·ÕèËéͧº¹ÊØ´¹Ð¤ÃѺ ¶éÒµéͧ¡ÒÃá¡éä¢
¶éÒàË繶١ ¨Ðà»ç¹áºº¹Õé¤ÃѺ. |
|
|