math help

What is 31/12 + 3/12?

What is 31/12 + 3/12?

This is how you add

31
12
 +
3
12

Step 1

Since our denominators match, we can add the numerators.

31 + 3 = 34

This yields the answer

34
12

Step 2

The last step is to reduce the fraction if we can.

To find out, we try dividing it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

34
12
 ÷ 2 =
17
6

Now, try the same number again.

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

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

No good. 7 is larger than 6. So we're done reducing.

Congratulations! Here's your final answer to 31/12 + 3/12

31
12
 +
3
12
 =
17
6
© 2014 Randy Tayler

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