Since 4 is evenly split by 12, we can multiply simply one hatchet to gain a usual denominator.

You are watching: 7/12-1/4

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

*

So currently our fountain look prefer this:

7
12
+3
12

Step 2

Since our platform match, us can add the numerators.

7 + 3 = 10

So the price is:

10
12

Step 3

Last the all, we should simplify the fraction, if possible. Can it be diminished to a simpler fraction?

To uncover out, we shot dividing that by 2...

Are both the numerator and the denominator same divisible through 2? Yes! for this reason we mitigate it:

10
12
÷ 2 =5
6

Let"s shot dividing by the again...

Nope! So currently we shot the next biggest prime number, 3...

Nope! So currently we try the next biggest prime number, 5...

Nope! So now we shot the next greatest prime number, 7...

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No good. 7 is bigger than 5. For this reason we"re done reducing.

There you have it! Here"s the final answer come 7/12 + 1/4
7
12
+1
4
=5
6

© 2014 Randy Tayler
1/4 + 1/2
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