How do you subtract fractions with different denominators?

When solving fractions with different denominators, you first need to make the denominators the same.

Example:

-

You need to make sure the denominators are the same.

Can 2 get multiply by something and will be 4?

The answer is yes, if you multiply 2 by 2, it will change the 2 to 4. You have to multiply the equation by   (which is also equivalent to 1) and which change the equation to .

And now you can subtract because the denominators are the same.

Hope this helps!

If you have any questions feel free to ask.

the answer is b.)

< 1=< 2