Calculated Industries 4090 - Manual (Page 36)

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Adding and Subtracting Fractions of an Inch
Add 1/2 Inch, 3/8 Inch and 11/16 Inch. Then subtract 5/8 Inch.
KEYSTROKE DISPLAY
o o 0.
1 / 2 + 3 / 8 + 1 1 / 1 6 = 1-9/16
INCH
– 5 / 8 = 0-15/16
INCH
Converting Fractions to Decimals
Convert 7/32 Inch and 1/3 Inch to Decimals, respectively (and round
answers):
KEYSTROKE DISPLAY
o o 0.
7 / 3 2 Ç i 0.21875
INCH
(Answer = 0.219”)
1 / 3 Ç i 0.333333
INCH
(Answer = 0.33”)
Converting Decimals to Fractions
Convert 5.875 Inches and 8.545 Inches to the nearest 16ths of an
Inch:
KEYSTROKE DISPLAY
o o 0.
5 • 8 7 5 i Ç i 5-7/8
INCH
8 • 5 4 5 i Ç i 8-9/16
INCH
Finding Length (of Iron) Required
What is the length of iron required if you need twenty (20) pieces
measuring 5-1/16 Inches each? If you allow 3/32 Inch for each cut,
what is the new length required?
KEYSTROKE DISPLAY
o o 0.
5 i 1 / 1 6 x 2 0 = 101-1/4
INCH
μ M+ 101-1/4
INCH
3 / 3 2 x 1 9 = 1-25/32
INCH
μ M+ 1-25/32
INCH
® μ M+ 103-1/32
INCH
® ® (clear Memory) M+ 103-1/32
INCH
STORED
M
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M