If 1/2 of a gallon of paint covered 1/4 of the wall how much does it take to cover the whole

2 gallons of paint.

Step-by-step explanation:

Since gallon of paint covered = of the wall.

Therefore, 1 gallon of paint covered = 1 × = = of the wall.

To paint 1 wall we need the paint = = gallon of paints

                                                      = 2 gallons of paint.

2 gallons of paint covers the whole wall.

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.