Question

jan's gas tank is nearly empty, at 1/12 full. she doesn't have enough cash to fill the tank, she adds enough gas to reach 2/3 full.
How much gas did she add, as a fraction of the tank?

Answer 1

Answer:

7/12

Step-by-step explanation:

well first you have subtract 2/3 from 1/12 how you do that is that you have to change the denominator into twelve by multiplying 3 times 4 and 2 times for which you get 8/12 them subtract 8/12 from 1/12 which is 7/12

Answer 2

If Jan's tank is 1/12 full and after addition it becomes 2/3 full then she added 7/12 gas as a fraction of tank.

What is fraction?

Fraction is a combination of two numbers one in numerator and the other one in denominator. The number which is above the division sign is known as numerator and the number which is below the division sign is known as  denominator. It is expressed as v/u where v is numerator and u is denominator.

How to calculate fraction?

Initial quantity of gas is 1/12 of the tank.

Quantity of gas after filling is 2/3 of the tank.

So the initial fraction is 1/12 and final fraction is 2/3.

let the fraction of gas added be x.

So,

1/12+x=2/3

x=2/3-1/12

x=(8-1)/12

x=7/12

Hence the gas which is added by Jan is 7/12 fraction of the tank.

Learn more about fraction at https://brainly.com/question/78672

#SPJ2