Question

Sam's gas tank is 1/6 full. After he buys 11 gallons of gas, it is 2/3 full. How many gallons can Sam's gas tank hold?

Answer 1

fraction of tank filled ... 2/3 = 4/6 ... 4/6 - 1/6 = 3/6 = 1/2

half a tank is 11 gal