How do you subtract unlike fractions?

You find the LCM of the denominators in the fractions, then you multiply both fractions as needed till both have like denominators. Then you subtract.

For example:

5/9 - 2/4

LCM of 9 and 4 is 36

[(5 x 4)/(9 x 4)] - [(2 x 9) - (4 x 9)]
= 20/36 - 18/36
20/36 - 18/36 = 2/36
2/36 = 1/18

hope this helps ya!

The number of cans recycled is the independent variable because it affects the amount of money earned.

Step-by-step explanation:

sory the other guy is a but head the answer is right got it right on my test