The floor of a room is being covered with tile. an are 4/5 of the length and 3/4 of the width is covered. find the fraction of the floor that has been covered.

Multiply the denominators of the fractions to get the new denominator.So 4x3=12 and 5x4=20 so 12/20 and find a common number that will divide into both of those in this case 4 so 12/4=3 and 20/4=5 so your answer is 3/5 ok.