How to use short division

How to use short division

Short division is to write the prime factor shared by two numbers where the divisor is written in the division, and then drop the quotient of the two numbers divided by the common prime factor, and then divide them, and so on, until the result is coprime, Other numbers without this factor are left as they are until every other two are coprime relations. & nbsp; & nbsp; & nbsp; & nbsp; finding the greatest common divisor multiplies one side and finding the least common multiple multiplies half. Short division is generally used to find the least common multiple and the greatest common divisor http://baike.baidu.com/view/915249.html?wtp=tt

What's the difference between two and one half minus (positive two and two thirds) + four and one seventh minus (negative two and one half) minus (positive one has one sixth)

It's five and forty-two thirteen

Two and a half minus (positive two and a third) plus four and a seventh minus (negative two and a half) minus (positive one and a sixth)
Ask for answers and solutions --- depending on the situation --

Two and a half [5 / 2] minus (positive two and two thirds [8 / 3]) plus four and a seventh [29 / 7] minus (negative two and a half [5 / 2]) minus (positive one and a sixth [7 / 6])
Note that subtracting a negative number is equal to adding a positive number, such as 2 - (- 1) = 2 + 1 = 3
Adding a negative number equals subtracting a positive number, such as 2 + (- 1) = 2-1 = 1,
So the above formula is: 5 / 2 - (+ 8 / 3) + (29 / 7) - (- 5 / 2) - (+ 7 / 6)
=5/2 -（8/3）+（29/7） +（5/2）-（7/6）
= 5 -（8/3）+（29/7）-（7/6）
=5 -（16/6）+（29/7）-（7/6）
==223/42
=5-（【16+7】/6）+（29/7）
=5-（21/6）+（29/7）
=(5X42)/42-（21X7/42）+(29X6/42)

-The absolute value of the reciprocal of 5 / 3 (minus five-thirds) is

-The absolute value of the reciprocal of 5 / 3 is 3 / 5