Question

How do you add `\frac { 1} { 4} + \frac { 9} { 14}`?

Answer 1

`25/28`

Explanation:

We first must find the least common denominator which in this case is `28`.

To do this, we must multiply the following to get `28`:

• `4*7` and `14*2`. This will give us the least common denominator.

Rule: What we do to the bottom, must be done to the top. so multiply the following to balance the equation:

• `1*7` and `9*2`

Now we have a fraction equation such as the following:

• `7/28+18/28 = 25/28`

• Keeping the denominator the same, add across and simplify if necessary.

Answer - `25/28`