12 goes right into 3 evenly, so we only should multiply one hatchet to acquire a common denominator.

You are watching: 7/12-1/3

Multiply 1 by 4, and also get 4, then us multiply 3 by 4 and also get 12.

*

We now have a brand-new problem, the looks favor this:

4
12
+7
12

Step 2

Since our platform match, us can add the numerators.

4 + 7 = 11

That offers us the sum, which is

11
12

Step 3

Now, perform we have to simplify this fraction?

First, us attempt to divide it by 2...

No good. So following you shot the next prime number, which is 3...

No good. So following you shot the next prime number, i beg your pardon is 5...

No good. So following you try the following prime number, which is 7...

No good. So next you try the next prime number, i beg your pardon is 11...

No good. So next you shot the next prime number, i beg your pardon is 13...

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No good. 13 is larger than 11. For this reason we"re done reducing.

And we"re done! Here"s the last answer to 1/3 + 7/121
3
+7
12
=11
12

© 2014 Randy Tayler
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