Casio FX300MS User Guide - Page 15

Percentage Calculations

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uMixed Fraction ↔ Improper Fraction Conversion • Example: 1 2 ↔ 5 33 1 C 2 C 3 = 1 2 3.00 A B A B 5 3.00 1 2 3.00 • You can use the display setup (Disp) screen to specify the display format when a fraction calculation result is greater than one. • To change the fraction display format, press the q key a number of times until you reach the setup screen shown below. Disp 1 • Display the selection screen. 1 • Press the number key (1 or 2) that corresponds to the setting you want to use. 1(ab/c): Mixed fraction 2(d/c): Improper fraction • An error occurs if you try to input a mixed fraction while the d/c display format is selected. k Percentage Calculations • Example 1 : To calculate 12% of 1500 (180) 1500 - 12 A v • Example 2: To calculate what percentage of 880 is 660 (75%) 660 \ 880 A v • Example 3 : To add 15% onto 2500 (2875) 2500 - 15 A v + • Example 4 : To discount 3500 by 25% (2625) 3500 - 25 A v , E-13

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E-13
u
Mixed Fraction
↔
Improper Fraction
Conversion
•
Example:
1
↔
1
C
2
C
3
=
A
B
A
B
5
3.
00
1
2
3.
00
5
3
2
3
1
2
3.
00
•
You can use the display setup (Disp) screen to specify
the display format when a fraction calculation result is
greater than one.
•
To change the fraction display format, press the
q
key
a number of times until you reach the setup screen shown
below.
1
Disp
•
Display the selection screen.
1
• Press the number key (
1
or
2
) that corresponds to
the setting you want to use.
1
(a
b
/
c
):
Mixed fraction
2
(d/c):
Improper fraction
•
An error occurs if you try to input a mixed fraction while
the d/c display format is selected.
k
Percentage Calculations
•
Example 1:
To calculate 12% of 1500
(180)
1500
-
12
A
v
•
Example 2:
To calculate what percentage of 880 is 660
(75%)
660
\
880
A
v
•
Example 3:
To add 15% onto 2500
(2875)
2500
-
15
A
v
+
•
Example 4:
To discount 3500 by 25%
(2625)
3500
-
25
A
v
,