Question

Question #af32b

Answer 1

You make them have the same denominators

Explanation:

If you have a fraction, you can multiply the top and the bottom by the same number and the fraction remains the same.

Ex: `4/9 = (4*2)/(9*2) = 8/18`

So you can make sure that the denominators are equal by finding the "least common multiple" and making that the denominator of both fractions.

Ex: `4/9 + 1/6`

The least common multiple of the denominators 9 and 6 is 18 so:

`=(4*2)/(9*2)+(1*3)/(6*3)`

`=(8)/(18)+(3)/(18)`

`=(11)/(18)`