-1/14+10/7=?
回答 (8)
2008-03-12 8:33 pm
✔ 最佳答案
- 1 / 14 + 20 / 14 = 19 / 14
2008-03-12 1:12 pm
= - 1/14 + 10/7
= - 1/14 + 20/14
= 19/14
Answer: 19/14
= - 1/14 + 20/14
= 19/14
Answer: 19/14
2008-03-12 1:11 pm
19/14
2008-03-12 1:10 pm
19/14
2008-03-12 1:11 pm
first change the denominator
-1/14+20/14
19/14
-1/14+20/14
19/14
2008-03-12 1:17 pm
19/14.
find the lcd, in this case 14
keep -1/14 the same, cuz u don't need to mulitply anything to get the denominator to 14
multilply the top and bottom of 10/7 ny two, getting 20/14.
add 20/14+-1/14
19/14 is your answer
find the lcd, in this case 14
keep -1/14 the same, cuz u don't need to mulitply anything to get the denominator to 14
multilply the top and bottom of 10/7 ny two, getting 20/14.
add 20/14+-1/14
19/14 is your answer
2008-03-12 4:42 pm
-1/14 + 10/7
= 10/7 - 1/14
= 20/14 - 1/14
= 19/14
= 1 5/14
= 10/7 - 1/14
= 20/14 - 1/14
= 19/14
= 1 5/14
2008-03-12 1:18 pm
-1/14 + 10/7
Taking 1/7 common ( to simplify )
= [ 1/7 { -(1/2)+(10) } ]
= [ 1/7 { ( -1+20 ) / 2 } ]
=[1/7 (19/2) ] = 19/14 Ans.
Taking 1/7 common ( to simplify )
= [ 1/7 { -(1/2)+(10) } ]
= [ 1/7 { ( -1+20 ) / 2 } ]
=[1/7 (19/2) ] = 19/14 Ans.
參考: Tip : To simplify any mathematical question, first take out the common number. Like 1/7 in this case..
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