Solve: 3 5/8 - 1 2/6?

2009-06-10 3:07 pm

回答 (10)

2009-06-10 3:25 pm
✔ 最佳答案
3 5/8 - 1 2/6
= 29/8 - 8/6
= 87/24 - 32/24
= 55/24
= 2 7/24
2009-06-11 7:40 am
Find the LCM (least common multiple).
8 = 2 x 2 x 2
6 = 2 ...........x 3
---------------------------
...= 2 x 2 x 2 x 3
...= 24

3 5/8 - 1 2/6
= 3 (5 x 3)/(8 x 3) - 1 (2 x 4)/(6 x 4)
= 3 15/24 - 1 8/24
= 2 7/24
2009-06-10 4:51 pm
3 - 1 + 5/8 - 2/6

2 + 15/24 - 8/24

2 + 7/24

2 7/24
2009-06-10 3:30 pm
3 5/8 - 1 2/6 = 8*3+5 - 6*1+2 = 24+5 - 6+2 = 29/8 - 8/6 = 3.625 - 1.333 = 2.292
2009-06-10 3:28 pm
2 7/24
2009-06-10 3:23 pm
well, you are supposed to solve this by yourself but ill explain it to you. First you have to find the least common denominator. You do this by either listing out the multiples for each denominator, or by multiplying the denominators together. But remember, whatever you multiply the bottom by you must multiply the top by.
So after i did that i got 3 15/24 - 1 8/24. ( i multiplied 8 by 3 and 6 by 4). What you do now is subtract 1 from 3 to get 2. Then you subtract 8 from 15 to get 7. So your answer is 2 7/24. this should be correct, and if it isn't- never result to the internet to let other people do your work. You should do it yourself.
2009-06-10 3:21 pm
Change mixed fraction to top-heavy fraction
3 5/8 = 3(8) + 5 = 29
3 5/8 = 29/8

1 2/6 = 1(6) + 2 = 8
1 2/6 = 8/6

Find common denominator = 24
24/8*29 = 87
24/6*8 = 32

Subtract
87/24 - 32/24 = 55/24

Change back to mixed fraction
55/24 = 2 r 7 = 2 7/24
2009-06-10 3:21 pm
Given:

3 5/8 - 1 2/6
= 29/8 - 8/6
= 87/24 - 32/24
= 55/24
=2 7/24 Ans
參考: General arithmatic
2009-06-10 3:15 pm
29/8 -8/6 = 87/24 -32/24 = 55/24
2009-06-10 3:15 pm
2.295


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