Which fraction is the greatest (represents the largest quantity).a1/ b.3/8. c.2/5 d.1/2

Can someone me out here and the tell me the greatest common factor

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

5x−4≥12 or 12x+5≤−4 can you with this problem