math help

What is 78/92 + 3/4?

What is 78/92 + 3/4?

This is how you add

78
92
+
3
4

Step 1

Now we need to make our denominators match.

92 goes into 4 evenly, so we only need to multiply one term to get a common denominator.

Multiply 3 by 23, and get 69, then we multiply 4 by 23 and get 92.

3/4 times 23

This gives us a new problem that looks like so:

78
92
+
69
92

Step 2

Since our denominators match, we can add the numerators.

78 + 69 = 147

That gives us an answer of

147
92

Step 3

Can this fraction be reduced?

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

Nope! So now we try the next greatest prime number, 3...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

Nope! So now we try the next greatest prime number, 13...

Nope! So now we try the next greatest prime number, 17...

Nope! So now we try the next greatest prime number, 19...

Nope! So now we try the next greatest prime number, 23...

Nope! So now we try the next greatest prime number, 29...

Nope! So now we try the next greatest prime number, 31...

Nope! So now we try the next greatest prime number, 37...

Nope! So now we try the next greatest prime number, 41...

Nope! So now we try the next greatest prime number, 43...

Nope! So now we try the next greatest prime number, 47...

Nope! So now we try the next greatest prime number, 53...

Nope! So now we try the next greatest prime number, 59...

Nope! So now we try the next greatest prime number, 61...

Nope! So now we try the next greatest prime number, 67...

Nope! So now we try the next greatest prime number, 71...

Nope! So now we try the next greatest prime number, 73...

Nope! So now we try the next greatest prime number, 79...

Nope! So now we try the next greatest prime number, 83...

Nope! So now we try the next greatest prime number, 89...

Nope! So now we try the next greatest prime number, 97...

No good. 97 is larger than 92. So we're done reducing.

There you have it! Here's the final answer to 78/92 + 3/4

78
92
+
3
4
=
147
92
© 2014 Randy Tayler