math help

What is 63/58 + 5/10?

What is 63/58 + 5/10?

This is how we add

63
58
+
5
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 63 by 10, and get 630, then we multiply 58 by 10 and get 580.

63/58 times 10

Do the same for the second term. We multiply 5 by 58, and get 290, then multiply 58 by 10 and get 580.

5/10 times 58

So now our fractions look like this:

630
580
+
290
580

Step 2

Since our denominators match, we can add the numerators.

630 + 290 = 920

So the answer is:

920
580

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:

920
580
÷ 2 =
460
290

Now, try the same number again.

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

460
290
÷ 2 =
230
145

Now, try the same number again.

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

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

Are both the numerator and the denominator evenly divisible by 5? Yes! So we reduce it:

230
145
÷ 5 =
46
29

Now, try the same number again.

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...

No good. 31 is larger than 29. So we're done reducing.

Congratulations! Here's your final answer to 63/58 + 5/10

63
58
+
5
10
=
46
29
© 2014 Randy Tayler