Step 1

We can"t add two fountain with different denominators (the bottom number). So you require to obtain a usual denominator - both bottom numbers should match. To carry out this, you"ll multiply the denominators times each other... However the numerators have to change, too. They obtain multiplied by the other term"s denominator.

You are watching: What is 1/4 of 7

So we multiply 1 by 7, and also get 7, then we multiply 4 by 7 and get 28.

*

Do the very same for the second term. We multiply 4 by 4, and also get 16, climate multiply 4 through 7 and also get 28.

*

So currently our fountain look prefer this:

7
28
+16
28

Step 2

Since our denominators match, us can include the numerators.

7 + 16 = 23

So the price is:

23
28

Step 3

Last the all, we need to simplify the fraction, if possible. Have the right to it be diminished to a less complicated fraction?

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

Nope. Shot the following prime number, 3...

Nope. Shot the following prime number, 5...

Nope. Try the following prime number, 7...

Nope. Shot the next prime number, 11...

Nope. Shot the next prime number, 13...

Nope. Try the following prime number, 17...

Nope. Shot the following prime number, 19...

Nope. Try the following prime number, 23...

Nope. Shot the following prime number, 29...

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No good. 29 is bigger than 23. For this reason we"re done reducing.

Congratulations! Here"s your final answer come 1/4 + 4/71
4
+4
7
=23
28

© 2014 Randy Tayler
4/7 + 1/2
4/7 - 1/2
4/7 + 1/3
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