Answer:
Explanation:
Let's tackle each statement at a time:
Jamal filled his gas tank of which he used
.
We need to express the unit (a gas tank) in terms of fractions so that we can substract
.
The denominator of the second term of our substraction is
, so we can express the first term as
. Now that we have the same denominator in both terms, we can proceed to define
as a common denominator and rewrite the expression as:
, which gives us a result of
, which is what Jamal has left after visiting his grandfather. This expression cannot be simplified anymore.
Then, he used
of the remaining
.
We express it as if he had
of the remaining
.:
We multiply the terms:
And simplify:
So, at the end, Jamal has
of his tank left.