Changing decimals to fractions

Pressing the [a b/c] Converts the displayed value between fraction and decimal form.

To convert a single result from fraction to decimal, press SD. To have all results come out in decimal, press SHIFT MODE 2 to select LineIO mode.

Pressing the [S

You can always convert a fraction to a decimal. The reverse may not always be possible. Look at the example on the screen capture.

You may be lucky and recover a fraction you have just converted into decimal format, but you cannot just write 0.333333333333 and expect the calculator to convert it to 1/3: The true fraction 1/3 has an infinite number of 3's after the decimal mark.

You can always convert a fraction to a decimal. The reverse may not alwas be possible.
Look at the example on the screen capture.

If you enter an improper fraction or a mixed fraction with the the [a b/c] key it will be displayed as a fraction. This result being displayed you can press the [F-D] key to convert the fraction to decimal. If you do nothing else and you press the [F-D] key again, the original fraction will be restored.

However, it seems that you cannot enter an arbitrary decimal number and convert it to a fraction. The [F-D] key seems to work one way : from a fraction to a decimal number. You will only recover a fraction if the original number was a fraction.

To force a fraction to be displayed as a decimal number put a decimal mark at the end of the numerator OR the denominator. Fraction/decimal result is always decimal.

Hello,

75/100 [=] gives 3/4. Press [S<->D] key to convert to decimal 0.75

0.75 [=] gives 0.75 Press [S<->D] key to convert to fraction 3/4

It can convert radicals into decimal and decimals into radicals.

Hope it helps.

pressing the 'a b/c' key toggles between fraction and decimal formats

You can't or fractions only or the answer will be in decimal. sorry