ricardo's recipe for 4 loaves of bread requires 2/3 cup of olive oil.He only wants to make 1 loaf.Ricardo makes a model to find out how much oil he needs to use.He folds a piece of paper into three parts and shades two parts.Then he folds the paper into four parts and shades 1/4 of the shaded part.Ricardo decides he needs 1/4 cup of olive oil.Is he right?Explain