Question

Hello! I have a question about some math! So, the question is what is 2 3/4 - half an hour! I've been working very hard on this question and still cant answer it! I need help ASAP!

Answer 1

Given the following:

a.) You spend 2 3/4 hours baking and half an hour cleaning the kitchen.

To be able to determine how much time were you in the kitchen, we add the time you took on the mentioned activities.

We get,

`\text{ 2 }(3)/(4)\text{ + }(1)/(2)`

To be able to add a fraction and a mixed number, we must first make sure that the two fractions are like terms. Which means that they must be of the same denominator.

For 2 3/4, let's transform it into an improper fraction:

`\text{ 2 }(3)/(4)\text{ = }\frac{(2\text{ x 4) + 3}}{4}\text{ = }\frac{8\text{ + 3}}{4}\text{ = }(11)/(4)`

For 1/2, let's transform into one with a denominator of 4.

`\text{ }(1)/(2)\text{ x }(2)/(2)\text{ = }(2)/(4)`

Let's now add the two fractions:

`\text{ 2 }(3)/(4)\text{ + }(1)/(2)\text{ }\rightarrow\text{ }(11)/(4)\text{ + }(2)/(4)\text{ = }\frac{11\text{ + 2}}{4}\text{ = }(13)/(4)\text{ or 3 }(1)/(4)`

Therefore, you took 3 1/4 hours in the kitchen.