4又5分之八減1又14分之1乘4又15分之1= ?
唔該快一些答我，唔該。
我不懂得.........
2007-02-02 10:48 pm
回答 (6)
2007-02-02 10:58 pm
✔ 最佳答案
4 8/5 - 1 1/14 * 4 1/15 = ?先 * / 後 + -
1 1/14 = 15/14
4 1/15 = 61/15
61*15/14*15 = 915/210
4 8/5 = 28/5
28/5 - 915/210
42*28/210 - 915/210= 261/210
2007-02-02 11:46 pm
4又5分之八減1又14分之1乘4又15分之1
=28 / 5 - 15 / 14 x 61 / 15
= 28 / 5 - 61 / 14
=87 / 70
約=1.24
=28 / 5 - 15 / 14 x 61 / 15
= 28 / 5 - 61 / 14
=87 / 70
約=1.24
2007-02-02 10:58 pm
4 8/5 -1 1/14 X 4 1/15
=28/5 - 15/14 X 61/15
=28/5 - 915/210
=1176/210 - 915/210
=261/210
=87/70
=1 17/70
=28/5 - 15/14 X 61/15
=28/5 - 915/210
=1176/210 - 915/210
=261/210
=87/70
=1 17/70
2007-02-02 10:54 pm
4又5分之八減1又14分之1乘4又15分之1= ?
4又5分之八減1又14分之1乘4又15分之1
=28/5 - 15/14 x 61/15
=28/5 - 61/14
=87/70
? = 87/70
4又5分之八減1又14分之1乘4又15分之1
=28/5 - 15/14 x 61/15
=28/5 - 61/14
=87/70
? = 87/70
參考: BY EASON MENSA
2007-02-02 10:54 pm
4又5分之八減1又14分之1乘4又15分之1
= 4 8/5 – 1 1/14 * 4 1/15
= 4 8/5 – 15/14 * 61/15
= 4 8/5 – 61/14
= 28/5 – 61/14
= 392/70 – 305/70
= 87/70
= 1 17/70
2007-02-03 20:31:56 補充：
計錯數！
1 1/14 * 4 1/15 = 61/14
不是915/210
計錯數！
= 4 8/5 – 1 1/14 * 4 1/15
= 4 8/5 – 15/14 * 61/15
= 4 8/5 – 61/14
= 28/5 – 61/14
= 392/70 – 305/70
= 87/70
= 1 17/70
2007-02-03 20:31:56 補充：
計錯數！
1 1/14 * 4 1/15 = 61/14
不是915/210
計錯數！
2007-02-02 10:52 pm
1又70分之17
收錄日期: 2021-04-12 16:13:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070202000051KK01338