math help

What is 1/14 + 6/10?

What is 1/14 + 6/10?

This is how we add

1
14
 +
6
10

Step 1

Can you add yet? Nope! The denominators don't match. We need a common denominator. So next we take both denominators and multiply them. Next, take each numerator and multiply it by the denominator of the other term.

So, we multiply 1 by 10, and get 10, then we multiply 14 by 10 and get 140.

1/14 times 10

Now for the second term. You multiply 6 by 14, and get 84, then multiply 14 by 10 and get 140.

6/10 times 14

We now have a new problem, that looks like this:

10
140
 +
84
140

Step 2

Since our denominators match, we can add the numerators.

10 + 84 = 94

That gives us the sum, which is

94
140

Step 3

Now, do we need to simplify this fraction?

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

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

94
140
 ÷ 2 =
47
70

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...

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

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

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

Nope. Try the next prime number, 19...

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

Nope. Try the next prime number, 29...

Nope. Try the next prime number, 31...

Nope. Try the next prime number, 37...

Nope. Try the next prime number, 41...

Nope. Try the next prime number, 43...

Nope. Try the next prime number, 47...

Nope. Try the next prime number, 53...

No good. 53 is larger than 47. So we're done reducing.

Congratulations! Here's your final answer to 1/14 + 6/10

1
14
 +
6
10
 =
47
70
© 2014 Randy Tayler

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