Question 478508: you have 12 1/2 gallons of gas and us use 1/5 of the gas how much gas do you have left? Found 2 solutions by nerdybill, cleomenius:Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! you have 12 1/2 gallons of gas and us use 1/5 of the gas how much gas do you have left?
Begin by changing 12 1/2 gals into an improper fraction:
12 + 1/2
24/2 + 1/2
25/2
.
Next, if you've used 1/5, there is 4/5 left so:
(4/5)(25/2) = 100/10 = 10 gallons (amount of gasoline left)
