Math Problem Anonymous

[Hameedeh]

This is a question by a member who wishes to remain anonymous.

 

This is a Math problem that I always run into. Always. If I know a quantity and want to reduce it, I cannot figure it out. For example, if I know that 1/3 cup of a food is worth 240 calories, if I eat 1/4 cup of the food instead, how many calories did I eat? :unsure: Please tell me how many calories, and please also tell me how to solve the problem so that I can do it at all times! I don't want to come to this topic every day and ask a new question. ;)

[Ibrahim_A]

This is my solution:

 

Make common denominators:

 

1/3=4/12

1/4=3/12

 

240=4/12

 

240/4=60 which means that 1/12 of a cup is 60 calories

 

to find 1/4 of a cup which is 3/12 of a cup we just multiply

 

60*3=180 calories

 

If you have any questions, please ask.

 

If you have a calculator that can solve for X then you can use the magical methods of Algebra :D (which comes from Iraq #Proud)

 

(1/3)*X=240

 

X=720

 

(1/4)*720=180

Edited February 8, 2015 by Ibrahim_A

[alirex]

1/3 = 240 Calories

 

1/1 = 240 x 3 = 720 Calories

 

1/4 of 720 = 180 Calories

[Mithrandir]

This is a question by a member who wishes to remain anonymous.

 

This is a Math problem that I always run into. Always. If I know a quantity and want to reduce it, I cannot figure it out. For example, if I know that 1/3 cup of a food is worth 240 calories, if I eat 1/4 cup of the food instead, how many calories did I eat? :unsure: Please tell me how many calories, and please also tell me how to solve the problem so that I can do it at all times! I don't want to come to this topic every day and ask a new question. ;)

(salam)

This is is how I figure it out.

 

If you know the initial fraction(1/3), then multiply its caloric value(240) with the denominator of your fraction(3). Therefore you have something like this: 3*240=720..

 

Now you know what 1 full cup is worth. Then simply divide it by 4 to know what 1/4 of the cup is worth.

 

Therefore,

720/4=180!

 

General instructions=figure out what 1 cup holds, then divide your answer by the denominator of the new fraction.

 

ws.

[The Green Knight]

Here is how. Go back to school and study algebra. Or pay me 1000$ (USD) and I will teach algebra on line through Skype. ^_^

[A true Sunni]

assuming u arent a mathematician and just want an easy way to calculate it everytime.

 

start with 1/3 = 240

 

so you multiply 240 with bottom number (3) = 720

 

you then divide by top number (1) so stays same ie. 720

 

take 720 divide by bottom number of required (4) = 180

then multiply by top (1) =180 calories

[Khadim uz Zahra]

Since you are probably not familiar with math, since this is a very basic operation, I'll try to use as less of mathematical language and as much of plain English as possible.

 

Simply put:

 

First, find the number of calories in one cup. Which is as easy as:

 

Number of calories per cup = Total Number of Calories/Total Number of Cups.

 

You have 1/3 of a cup and 240 calories.

 

So,

 

Number of Calories per cup = 240 divided by 1/3 = 240*3 = 720

 

(If you're unsure about how I went from 240 divided by 1/3 to 240*3, just use a calculator and you'll use it's true.)

 

So, in one cup, there are 720 calories. If you had 2 cups, to find the number of calories you had, you would multiply by two. If you had ten cups, you'd multiply by ten. In this case, you have 1/4 of a cup.

 

Therefore,

 

Number of calories in 1/4 cups = 720*(1/4) = 720/4 = 180.

Edited February 8, 2015 by Khadim uz Zahra

[Hameedeh]

The member said to give a big Thank You to everyone who replied. :)