User Manual
4– = N 4 ∞ 5 Ø 6 =
4
¬¬
¬¬
¬
5/6
→ [A.xxx] ø
4.833333333
→ [A/B] æ
29/6
1 ÷ 3 = 1 / 3 =
0.333333333
→ [A/B] æ
1/3
6 ÷ 5 = 6 / 5 =
1.2
→ [A/B] æ
SIMP
12/10
→ [A
B
/
C
] º
SIMP
1
¬¬
¬¬
¬
2/10
→ [A.xxx] ø
1.2
1.25 + – = 1.25 + 2 Ø 5 =
1.65
→ [A
B
/
C
] º
SIMP
1
¬¬
¬¬
¬
65/100
ª==
1
¬¬
¬¬
¬
13/20
5
6
2
5
STATISTICAL CALCULATIONS
To enter the statistical mode, press @”. The indicator
symbol ’ will appear. The following statistics can be
obtained:
x : Mean of sample (x)
sx : Standard deviation of sample (x)
σ
x : Population standard deviation of sample (x)
n
: Number of samples
Σ
x : Total number of samples (x)
Σ
x
2
: Sum of the squares of sample (x)
Entering Data
To enter sample data, use the numeric keys and press
k(O key) after each value.
To enter data with its frequency, use the numeric keys to
enter the value, then press §(R key), enter the fre-
quency, then press k.
∏
∂ ∂ ∂√∫
∂√∫
Conversion from/to a Fraction
º : Converts a decimal or improper fraction to a
mixed fraction.
æ : Converts a mixed fraction or decimal to an im-
proper fraction. In some cases, a decimal may
not be converted to a fraction.
ø : Converts an improper fraction or a mixed frac-
tion to a decimal.
Calculating with Fractions
Fractions can be incorporated into an arithmetic calculation.
The “SIMP” symbol will appear with a calculation result if the
answer can be further simplified. Refer to the following sec-
tion of this manual for details.
* If = is pressed instead of a number entry, the lowest
common denominator will automatically be displayed.
1
2
– + – = N 1 Ø 3 + 1 Ø 4
1/3+1/4_
ª
DENOM.?
SIMP
28/48
=*
12_
SIMP
28/48
=
4/12+3/12_
=
7/12
1
3
1
4
[Automatic Simplification]
* If you do not know a common factor, press =. The
greatest common factor “6” will be displayed.
[Manual Simplification]
* “2” is entered as a factor, and “SIMP” will be displayed
to indicate further simplification of the fraction is possible.
If the entered value is not a common factor, the cursor will
be set under the value. Press d to clear the value, then
enter a correct common factor. Press N to return to the
“FACTOR?” display.
Now that you have learned how to reduce a fraction to its
simplest form, you can start using your calculator to per-
form fraction calculations quickly and efficiently.
– + — = N 1 Ø 3 + 2 Ø 12 =
SIMP
6/12
ª
FACTOR?
SIMP
6/12
=*6_
SIMP
6/12
=
1/2
1
3
2
12
– + — = N 1 Ø 3 + 2 Ø 12 =
SIMP
6/12
ª
FACTOR?
SIMP
6/12
2 =*
SIMP
23/6
ª 3 =
1/2
1
3
2
12
– + — = N 5 Ø 6 + 1 Ø 14 =
SIMP
38/42
=*
19/21
5
6
1
14
* If = is pressed instead of ª , the number will auto-
matically be reduced down to its simplest form with the
greatest common factor.
Reducing to the lowest denominator
Prior to pressing the = key, a common denominator can
be set to organize calculations.
– + – = N 1 Ø 3 + 1 Ø 4
1/3+1/4_
ª
DENOM.?
SIMP
28/48
48 =*
16/48+12/48_
=
SIMP
28/48
1
3
1
4
How to Simplify a Fraction
Reducing to its simplest form
If the result of pressing = is displayed with the “SIMP”
symbol, the calculation can be reduced further. Use the ª
key to set the factor of the fraction to simplify, either automati-
cally or manually.
4– = N 2 Ø 3 =
2/3
4– = 4 ∞ 1 Ø 2 =
4
¬¬
¬¬
¬
1/2
2
3
1
2
• Up to 10 key strokes, including “¬” and “
/
”, can be used to
enter a fraction.
* Enter a common denominator for the two fractions.
If the entered value is not a common denominator, the
cursor will be set under the value. Press d to clear the
value, then enter a correct common denominator. Press
N to return to the “DENOM.?” display.
Now that you have learned how to reduce a fraction to its
lowest denominator, you can start using your calculator
to perform fraction calculations quickly and efficiently.
– + – = N 1 Ø 2 + 1 Ø 3 =
5/6
– × – = 2 Ø 5 * 1 Ø 3 =
2/15
1
3
1
3
2
5