If Fran's fudge recipe calls for 2 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use?
2 9/10
its 2 9/10
Well, congratulations to Fran for sweetening things up a bit! If her fudge recipe originally called for 2 1/2 cups of sugar, and she increases it by 2/5 of a cup, she would be using a total of...wait for it...2 9/10 cups of sugar! So get your sweet tooth ready!
To solve this problem, we need to find the total amount of sugar Fran uses after increasing the recipe by 2/5 of a cup.
To start, we need to calculate the increase in the amount of sugar by adding 2/5 of a cup to the original amount.
2 1/2 cups of sugar can be written as a mixed number as 2 + 1/2 cups. To add 2/5 of a cup to this, we need to have a common denominator. Since 5 is the least common multiple of 2 and 5, we can rewrite 2 as 10/5.
So, now the original amount of sugar is 10/5 + 1/2 cups.
Adding these fractions, we get:
(10/5 + 1/2) cups = (10/5 + 5/5) cups = 15/5 cups = 3 cups
Therefore, Fran uses a total of 3 cups of sugar after increasing the recipe by 2/5 of a cup.