YOUR QUESTIONS:

The coffee cup can hold 7/9 of a pint of liquid. If Ellie pours 2/3 of a pint of coffee into a cup, how much milk can a customer add?

THE ANSWER:

D. 1/9

SOLUTION:

7/9 - 2/3 =7-6/9 = 1/9

EXPLANATION:

The cup of coffee can hold is 7/9 of a pint of liquid subtract to Elle pours 2/3 of a pint of liquid.

7/9-2/3

Write all numerators above the least common denominator 9

7-6/9

Subtract 7 and 6

= 1/9

1/9 pints of milk can be added by a customer

We have to subtract simple fractions to find the amount of milk that can be added to a cup of coffee

Given

Total Capacity of a cup = 7/9 pints Coffee to be added in a cup = 2/3 pints

So in order to find the amount of milk that can be added we have to subtract the amount of coffee from the total capacity of cup.

So,

Amount of milk = 7/9 - 2/3 7-6 1 = 9 9

Hence,

1/9 pints of milk can be added by a customer