What do you press on scientific calculators to do fractions?

Question

i have a scientific calculator but i dont know how to work on fractions with it

Answer 1

On the "lesser" ones, there's ab/c (or d/c for improper fractions). On the "greater" ones, there's division and parenthesis and *maybe* the convert to fraction sign.

Answer 2

You don't specify which model of calculator it is, which makes it difficult to help you.

If you have a Post 1460, it's pretty easy. For example, if you wanted to add 2/3 + 4/7, you'd slide the 3 on the C scale over the 2 on the D scale. Look along the C scale to find '7', read the number on the D scale immediately under the 7, which in this case is 4.67.

Now you have a common denominator and can the (4.67 + 4)/7 to get (8.67)/7. That's not a preferred format for a fraction, so you slide the 7 on the C scale over the 8.67 on the D scale. Look along both scales until you find two integers that match up. In this case, there aren't any under 10, so you have to work your way up past 10 by multiplying each of the values on the two scales by 10. You nearly have a match at 21/17, but if you keep going, you find you have a virtually perfect match at 26/21 (virtually perfect, since, as with any calculator, you can only get approximate answers).

Answer 3

The / button, for divided by. If you are trying to do 1/2 + 4/9 + 3/8 you should be able to do it in order.
1 / 2 + 4 / 9 + 3 / 8 = and you will likely get a decimal. There may or may not be a button on the calculator that says dec -> frac, usually it is one of the buttons you access above the regular buttons. (I think on TI calculators you hit 2nd and then it is around the enter/equals button)

Remember the order of operations though.
Parentheses
Exponents
Multiplication and Division
Addition and Subtraction

4/9 divided by 2/3 has to be put in as 4 / 9 / ( 2 / 3 )

Answer 4

say the fraction is 1/4 all you do is press 1 then the divided by sign / and then press 4 and it should give you a decimal answer.

If you are aloud to use more advance calulators the ti 89 is the best. It does cost like 100 or 150 dollars it lets you do all kinds of math functions on it. You also can just type the problem in the calculator as it shows on the paper and press enter and it will give you the answer. So those fraction problems would be even easier.

http://www.officemax.com/max/solutions/main/search/search.jsp?searchType=product&searchString=ti+calculator&cm_ven=Google&cm_cat=Product&cm_pla=TI%20Calculator&cm_ite=TIAGa

Answer 5

you can't do fractions on calculators....calculaters are a decimal device.

For example 1/3 means 1 divided by 3. If you divide 1 by 3 on a calculator, you get 0.3333333333 with as many threes as your display will hold. However 1 divided by 3 has an infinite number of 3's to the right of the decimal point.

Answer 6

You have to convert the fractions into decimals:

1/4 is the same as 1divided by 4 which equals .25

Answer 7

Enter the numerator, then enter the denominator, then press the 'divide' button.

When using a scientific calculator, first you enter the numbers, then you tell the machine what to do with them.

Answer 8

WOW!

You divide, and you press THE BUTTONS!


On second thought hon, put it down, you might have an aneurysm. and if you want to know what that is... don't try and use the calculator... use the diction... okay sorry, bad idea too! Never mind!

Answer 9

Have you ever thought about taking up Literature or History instead of one of the techie fields?


Doug

Answer 10

the line in between the numerator and the denominator / is the same as saying divide.