Christina and Erin made vegetable trays for a neighborhood picnic.
Part A Christina put 15 vegetables on her tray. If \(\frac{1}{5}\) of the vegetables were carrots, how many carrots were on the tray? Make a drawing to show your work.
Part B Erin put 20 vegetables on her tray. If \(\frac{1}{4}\) of them were carrots, how many carrots were on Christina's and Erin's trays? Explain how you found your answer.