math help

What is 7/10 + 11/12?

What is 7/10 + 11/12?

Here's how you add

7
10
+
11
12

Step 1

We can't add two fractions with different denominators (the bottom number). So you need to get a common denominator - both bottom numbers need to match. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 7 by 12, and get 84, then we multiply 10 by 12 and get 120.

7/10 times 12

Do the same for the second term. We multiply 11 by 10, and get 110, then multiply 10 by 12 and get 120.

11/12 times 10

So now our fractions look like this:

84
120
+
110
120

Step 2

Since our denominators match, we can add the numerators.

84 + 110 = 194

So the answer is:

194
120

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

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:

194
120
÷ 2 =
97
60

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...

Nope. Try the next prime number, 59...

Nope. Try the next prime number, 61...

No good. 61 is larger than 60. So we're done reducing.

Congratulations! Here's your final answer to 7/10 + 11/12

7
10
+
11
12
=
97
60
© 2014 Randy Tayler

11/12 + 1/2
11/12 - 1/2
11/12 + 1/3
11/12 - 1/3
11/12 + 2/3
11/12 - 2/3
11/12 + 1/4
11/12 - 1/4
11/12 + 2/4
11/12 - 2/4
11/12 + 3/4
11/12 - 3/4
11/12 + 1/5
11/12 - 1/5
11/12 + 2/5
11/12 - 2/5
11/12 + 3/5
11/12 - 3/5
11/12 + 4/5
11/12 - 4/5
11/12 + 1/6
11/12 - 1/6
11/12 + 2/6
11/12 - 2/6
11/12 + 3/6
11/12 - 3/6
11/12 + 4/6
11/12 - 4/6
11/12 + 5/6
11/12 - 5/6
11/12 + 1/7
11/12 - 1/7
11/12 + 2/7
11/12 - 2/7
11/12 + 3/7
11/12 - 3/7
11/12 + 4/7
11/12 - 4/7
11/12 + 5/7
11/12 - 5/7
11/12 + 6/7
11/12 - 6/7
11/12 + 1/8
11/12 - 1/8
11/12 + 2/8
11/12 - 2/8
11/12 + 3/8
11/12 - 3/8
11/12 + 4/8
11/12 - 4/8
11/12 + 5/8
11/12 - 5/8
11/12 + 6/8
11/12 - 6/8
11/12 + 7/8
11/12 - 7/8
11/12 + 1/9
11/12 - 1/9
11/12 + 2/9
11/12 - 2/9
11/12 + 3/9
11/12 - 3/9
11/12 + 4/9
11/12 - 4/9
11/12 + 5/9
11/12 - 5/9
11/12 + 6/9
11/12 - 6/9
11/12 + 7/9
11/12 - 7/9
11/12 + 8/9
11/12 - 8/9
11/12 + 1/10
11/12 - 1/10
11/12 + 2/10
11/12 - 2/10
11/12 + 3/10
11/12 - 3/10
11/12 + 4/10
11/12 - 4/10
11/12 + 5/10
11/12 - 5/10
11/12 + 6/10
11/12 - 6/10
11/12 + 7/10
11/12 - 7/10
11/12 + 8/10
11/12 - 8/10
11/12 + 9/10
11/12 - 9/10
11/12 + 1/11
11/12 - 1/11
11/12 + 2/11
11/12 - 2/11
11/12 + 3/11
11/12 - 3/11
11/12 + 4/11
11/12 - 4/11
11/12 + 5/11
11/12 - 5/11
11/12 + 6/11
11/12 - 6/11
11/12 + 7/11
11/12 - 7/11
11/12 + 8/11
11/12 - 8/11
11/12 + 9/11
11/12 - 9/11
11/12 + 10/11
11/12 - 10/11
11/12 + 1/12
11/12 - 1/12
11/12 + 2/12
11/12 - 2/12
11/12 + 3/12
11/12 - 3/12
11/12 + 4/12
11/12 - 4/12
11/12 + 5/12
11/12 - 5/12
11/12 + 6/12
11/12 - 6/12
11/12 + 7/12
11/12 - 7/12
11/12 + 8/12
11/12 - 8/12
11/12 + 9/12
11/12 - 9/12
11/12 + 10/12
11/12 - 10/12
11/12 + 11/12
11/12 - 11/12