Fern is her mother decoration for a family gathering. fern is putting lace around napkins. for each napkins, fern needs 3/5 yard of lace. fern will put the lace on two napkins. use a number line models to show the problem. write an equation to match the model. use the letter / to represent the amount of lace that fern will need. how many yards of lace will fern need? explain your answer.