一題數學題
如下:
(249+13/67+370+14/25)÷(62+20/67+92+16/25)
希望有好人可以解答
一題數學題(我唔懂得）
2008-01-08 2:24 am
回答 (15)
2008-01-08 2:50 am
✔ 最佳答案
(249+13/67+370+14/25)÷(62+20/67+92+16/25)=（1668300/6700+1300/6700+2479000/6700+3752/6700）
÷（415400/6700+2000/6700+616400/6700+4288/6700）
=[(1668300+1300+2479000+3752)/6700]÷[(415400+2000+616400+4288)/6700]
=(4152352/6700)÷(1038088/6700)
=(4152352/6700)*(6700/1038088)
=4152352/1038088
=4
參考: me
2008-02-21 1:51 am
ok
2008-01-14 4:38 am
我唔想give你做最佳回答
2008-01-09 2:12 am
(249+13/67+370+14/25)÷(62+20/67+92+16/25)
=[(250-1)+13/67+370+(1-11/25)]÷[(62+20/67+92+(1-9/25)]
=[(620-1)+13/67+(1-(11/25))]÷[(154+20/67+(1-(9/25))]
=[(620)+13/67-(11/25)]÷[(155)+20/67-(9/25)]
=[(620)+(1300/4)-(11X67)/(67X25]÷[(155)+((2000/4)-(9X67))/(67X25)]
=[(620)+(325-((10+1)X67)/(67X25))]÷[(155)+(500-((10-1)X67))/(67X25))]
=[(620)+(325-737)/(67X25)]÷[(155)+(500-603)/(67X25)]
=[(620)-(412)/(67X25)]÷[(155)-(103)/(67X25)]
=4X[(155)-(103)/(67X25)]÷[(155)-(103)/(67X25)]
=4
2008-01-08 18:13:00 補充：
我無抄人的
=[(250-1)+13/67+370+(1-11/25)]÷[(62+20/67+92+(1-9/25)]
=[(620-1)+13/67+(1-(11/25))]÷[(154+20/67+(1-(9/25))]
=[(620)+13/67-(11/25)]÷[(155)+20/67-(9/25)]
=[(620)+(1300/4)-(11X67)/(67X25]÷[(155)+((2000/4)-(9X67))/(67X25)]
=[(620)+(325-((10+1)X67)/(67X25))]÷[(155)+(500-((10-1)X67))/(67X25))]
=[(620)+(325-737)/(67X25)]÷[(155)+(500-603)/(67X25)]
=[(620)-(412)/(67X25)]÷[(155)-(103)/(67X25)]
=4X[(155)-(103)/(67X25)]÷[(155)-(103)/(67X25)]
=4
2008-01-08 18:13:00 補充：
我無抄人的
參考: me
2008-01-08 3:13 am
(249+13/67+370+14/25)÷(62+20/67+92+16/25)
=[(250-1)+13/67+370+(1-11/25)]÷[(62+20/67+92+(1-9/25)]
=[(620-1)+13/67+(1-(11/25))]÷[(154+20/67+(1-(9/25))]
=[(620-1)+13/67+(1-(11/25))]÷[(1504)+20/67+(1-(9/25))]
=[(620)+13/67-(11/25)]÷[(155)+20/67-(9/25)]
=[(620)+(1300/4)-(11X67)/(67X25]÷[(155)+((2000/4)-(9X67))/(67X25)]
=[(620)+(325-((10+1)X67)/(67X25))]÷[(155)+(500-((10-1)X67))/(67X25))]
=[(620)+(325-737)/(67X25)]÷[(155)+(500-603)/(67X25)]
=[(620)-(412)/(67X25)]÷[(155)-(103)/(67X25)]
=4X[(155)-(103)/(67X25)]÷[(155)-(103)/(67X25)]
=4
2008-01-07 19:16:56 補充：
step 3 打多左, 可以不理=[(620-1)+13/67+(1-(11/25))]÷[(1504)+20/67+(1-(9/25))]
=[(250-1)+13/67+370+(1-11/25)]÷[(62+20/67+92+(1-9/25)]
=[(620-1)+13/67+(1-(11/25))]÷[(154+20/67+(1-(9/25))]
=[(620-1)+13/67+(1-(11/25))]÷[(1504)+20/67+(1-(9/25))]
=[(620)+13/67-(11/25)]÷[(155)+20/67-(9/25)]
=[(620)+(1300/4)-(11X67)/(67X25]÷[(155)+((2000/4)-(9X67))/(67X25)]
=[(620)+(325-((10+1)X67)/(67X25))]÷[(155)+(500-((10-1)X67))/(67X25))]
=[(620)+(325-737)/(67X25)]÷[(155)+(500-603)/(67X25)]
=[(620)-(412)/(67X25)]÷[(155)-(103)/(67X25)]
=4X[(155)-(103)/(67X25)]÷[(155)-(103)/(67X25)]
=4
2008-01-07 19:16:56 補充：
step 3 打多左, 可以不理=[(620-1)+13/67+(1-(11/25))]÷[(1504)+20/67+(1-(9/25))]
2008-01-08 2:59 am
(249 + 13/67 + 370 + 14/25) / (62 + 20/67 + 92 + 16/25)
= (619 + 13/67 + 14/25) / (154 + 20/67 + 16/25)
= [619 + (13x25 + 14x67)/67x25] / [154 + (20x25 + 16x67)/67x25]
= [619 + (325 + 938)/1675] / [154 + (500 + 1072)/1675]
= [619 + 1263/1675] / [154 + 1572/1675]
= [(619x1675 + 1263)/1675] / [(154x1675 + 1572)/1675]
= [619x1675 + 1263]/1675 x [1675/(154x1675 + 1572)]
= [619x1675 + 1263] / [154x1675 + 1572]
= [616x1675 + 3x1675 + 1263] / [154x1675 + 1572]
= [4(154x1675) + 5025 + 1263] / [154x1675 + 1572]
= [4(154x1675) + 6288] / (154x1675 + 1572)
= 4(154x1675 + 1572) / (154x1675 + 1572)
= 4//
= (619 + 13/67 + 14/25) / (154 + 20/67 + 16/25)
= [619 + (13x25 + 14x67)/67x25] / [154 + (20x25 + 16x67)/67x25]
= [619 + (325 + 938)/1675] / [154 + (500 + 1072)/1675]
= [619 + 1263/1675] / [154 + 1572/1675]
= [(619x1675 + 1263)/1675] / [(154x1675 + 1572)/1675]
= [619x1675 + 1263]/1675 x [1675/(154x1675 + 1572)]
= [619x1675 + 1263] / [154x1675 + 1572]
= [616x1675 + 3x1675 + 1263] / [154x1675 + 1572]
= [4(154x1675) + 5025 + 1263] / [154x1675 + 1572]
= [4(154x1675) + 6288] / (154x1675 + 1572)
= 4(154x1675 + 1572) / (154x1675 + 1572)
= 4//
參考: myself...^^
2008-01-08 2:53 am
( 249 + 13/67 + 370 + 14/25 ) ÷ ( 62 + 20/67 +92 + 16/25 )
=619 1263/1675 ÷ 154 1572/1675
=1038088/1675 ÷ 259522/1675
=1038088/1675 * 1675/259522
=1038088/259522
=4
619 1263/1675 = 619 又 1263 份之1675 = 1038088/1675 (假分數)
154 1572/1675 = 154 又 1572 份之1675 = 259522/1675 (假分數)
果d數可能大左d . Sorry~
=619 1263/1675 ÷ 154 1572/1675
=1038088/1675 ÷ 259522/1675
=1038088/1675 * 1675/259522
=1038088/259522
=4
619 1263/1675 = 619 又 1263 份之1675 = 1038088/1675 (假分數)
154 1572/1675 = 154 又 1572 份之1675 = 259522/1675 (假分數)
果d數可能大左d . Sorry~
參考: Me
2008-01-08 2:46 am
3.99999999999999999
2008-01-08 2:37 am
(619/1263/1675)÷(154/1572/1675)
=4
=4
2008-01-08 2:34 am
The Answer is 4
收錄日期: 2021-04-13 14:54:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080107000051KK02683