SOLUTION: how do you solve (in detail- understanding) this 6 grade math problem... 4 1/5 -1 1/2

Question 682970: how do you solve (in detail- understanding) this 6 grade math problem...
4 1/5
-1 1/2

Found 2 solutions by ReadingBoosters, mananth:
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
4
-1
---------------
First, create a common denominator to subtract the fractions
The least common multiple of 2 and 5 is 10, which is 2*5
Multiply BOTH the denominator and the numerator by the number necessary to get the common denominator of 10.
...
4 ==>
-1 ==>
-------------------------
There is not enough in the to take away ,
so you have to borrow , which is 1 from the 4
...
==>
-1
-----------------------
Now there is enough to subtract, both the whole numbers and the numerators.
3
-1
---------------
2
.....................
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Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!

convert the mixed fraction into a simple fraction

We have to equalize the denominator to enable us to add or subtract the numerators of the two fractions.
the denominators of the fractions are 5 &2
multiply both of them we get 10
This will be the common denominator
5 times 2 is 10
so multiply the numerator and denominator of first fraction by 2
2 times 5 is 10
& multiply and divide the second fraction by 5 to get 10 denominator

Since the denominators are same we can subtract the numerators.

There you are!
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