math help

What is 9/32 + 1/10?

What is 9/32 + 1/10?

This is how we add

9
32
+
1
10

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 9 by 10, and get 90, then we multiply 32 by 10 and get 320.

9/32 times 10

Do the same for the second term. We multiply 1 by 32, and get 32, then multiply 32 by 10 and get 320.

1/10 times 32

So now our fractions look like this:

90
320
+
32
320

Step 2

Since our denominators match, we can add the numerators.

90 + 32 = 122

Now we have an answer.

122
320

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:

122
320
÷ 2 =
61
160

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...

Nope. Try the next prime number, 67...

No good. 67 is larger than 61. So we're done reducing.

Congratulations! Here's your final answer to 9/32 + 1/10

9
32
+
1
10
=
61
160
© 2014 Randy Tayler