<span>You need (8-6) 2 extra gallons to take a bath. With sixty people bathing, you'll need 60*2=120 extra gallons to meet the extra demand for water. Alternatively, you could note that 60 bathers*8 gallons per bath=480 gallons of water would be used for 60 baths and 60*6=360 needed for showers. The difference would be 480-360=120 gallons.</span>
2/3= 0.6667 which you can figure out by 2÷3 3/4= 0.75 which you can figure out by 3÷4 because 0.75 is greater than 0.6667 she has enough to make the cake.